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Nahok B, Chanlabut U, Tumpeesuwan S, Tumpeesuwan C. Two new species of Landouria Godwin-Austen, 1918 (Gastropoda, Camaenidae) from Thailand, with a key to Thai species. Zookeys 2024; 1208:347-362. [PMID: 39170809 PMCID: PMC11336397 DOI: 10.3897/zookeys.1208.117056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 07/08/2024] [Indexed: 08/23/2024] Open
Abstract
The present work contains descriptions of two new species of Landouria and a key to Thai species of this genus. Landouriabella sp. nov. is described from isolated limestone hills in Ratchaburi and Phetchaburi provinces, western Thailand. This new species is characterized by its small depressed-globose shell without a peripheral keel, the presence of a small, thin lamella on the columellar side of the inner aperture, a long, cylindrical distally bent flagellum, a short penis with a rounded verge, and a short, thick free oviduct and vagina. The second new species, Landouriamonodon sp. nov. is described from sandstone hills in Kalasin Province, northeastern Thailand. This species has a depressed-conic shell with a blunt peripheral keel, a thick prominent lamella on the columellar side of the inner aperture, a short, finger-shaped, distally bent flagellum, and a long penis with a small, short verge.
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Affiliation(s)
- Benchawan Nahok
- Department of General Science, Faculty of Education, Chaiyaphum Rajabhat University, Muang District, Chaiyaphum, 36000, ThailandChaiyaphum Rajabhat UniversityChaiyaphumThailand
| | - Utain Chanlabut
- Department of General Science, Faculty of Education, Chaiyaphum Rajabhat University, Muang District, Chaiyaphum, 36000, ThailandChaiyaphum Rajabhat UniversityChaiyaphumThailand
| | - Sakboworn Tumpeesuwan
- Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham, 44150, ThailandMahasarakham UniversityMaha SarakhamThailand
| | - Chanidaporn Tumpeesuwan
- Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham, 44150, ThailandMahasarakham UniversityMaha SarakhamThailand
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Man NS, Ablett JD, Lwin N, Sutcharit C, Panha S. Contributions on a small collection of the former Subulinidae Fischer & Crosse, 1877 (Eupulmonata, Achatinoidea) with catalogue of the Glessula and Rishetia species recorded from Myanmar. Zookeys 2024; 1208:173-239. [PMID: 39114566 PMCID: PMC11303849 DOI: 10.3897/zookeys.1208.116083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Accepted: 06/12/2024] [Indexed: 08/10/2024] Open
Abstract
The taxonomy of subulinid snails in Myanmar has been evaluated, resulting in the recognition of 40 species and subspecies across nine genera: Allopeas, Bacillum, Curvella, Glessula, Opeas, Paropeas, Rishetia, Tortaxis, and Zootecus. Nine species are re-described based on recently collected specimens, and two new species, Glessulamandalayensis Man & Panha, sp. nov. from Mandalay Region and Tortaxiscylindropsis Man & Panha, sp. nov. from Shan State are introduced. The genitalia and radula of Zootecuspullus was studied for the first time. This study also presents a comprehensive list of all subulinid species recorded to date from Myanmar. The type specimens and authenticated museum specimens have been illustrated with accompanying taxonomic remarks and nine species formerly assigned in Glessula are now placed in Rishetia: R.akouktoungensis, R.baculina, R.basseinensis, R.burrailensismaxwelli, R.kentungensis, R.limborgi, R.nathiana, R.pertenuis, and R.pertenuismajor.
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Affiliation(s)
- Nem Sian Man
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, ThailandChulalongkorn UniversityBangkokThailand
- Department of Zoology, University of Yangon, University Avenue Road, Kamayut Township 11041, Yangon, MyanmarUniversity of YangonYangonMyanmar
| | - Jonathan D. Ablett
- Department of Life Sciences, The Natural History Museum, Cromwell Road, London SW7 5BD, UKThe Natural History MuseumLondonUnited Kingdom
| | - Ngwe Lwin
- Fauna and Flora International, No. 35, 3rd Floor, Shan Gone Condo, Myay Ni Gone Market Street, Sanchaung Township, Yangon, MyanmarFauna and Flora InternationalYangonMyanmar
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, ThailandChulalongkorn UniversityBangkokThailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, ThailandChulalongkorn UniversityBangkokThailand
- Academy of Science, The Royal Society of Thailand, Bangkok 10300, ThailandAcademy of Science, The Royal Society of ThailandBangkokThailand
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Jirapatrasilp P, Huang CW, Sutcharit C, Lee CT. The arboreal snail genus Amphidromus Albers, 1850 (Eupulmonata, Camaenidae) of Southeast Asia: 1. Molecular systematics of some Vietnamese species and related species from Cambodia, Indonesia, and Laos. Zookeys 2024; 1196:15-78. [PMID: 38560093 PMCID: PMC10980882 DOI: 10.3897/zookeys.1196.112146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 02/06/2024] [Indexed: 04/04/2024] Open
Abstract
This paper reassesses the taxonomy and systematics of 11 arboreal snail species in the genus Amphidromus from Vietnam, Cambodia, Indonesia and Laos (A.bozhii Wang, 2019, A.buelowi Fruhstorfer, 1905, A.costifer Smith, 1893, A.haematostoma Möllendorff, 1898, A.ingens Möllendorff, 1900, A.madelineae Thach, 2020, A.metabletus Möllendorff, 1900, A.pankowskianus Thach, 2020, A.placostylus Möllendorff, 1900, A.roseolabiatus Fulton, 1896, and A.thachi Huber, 2015). The taxonomic validity of each species is supported by a phylogenetic analysis of mitochondrial COI and 16S rRNA gene fragments from 17 ingroup taxa. Amphidromusbuelowi was found to comprise two populations from two distant localities, one from Mount Singgalang, West Sumatra, Indonesia and the other from southern Vietnam. The samples from southern Vietnam were previously described as A.asper Haas, 1934 and A.franzhuberi Thach, 2016, but they are now treated as junior synonyms of A.buelowi in this study. In addition, two species from Vietnam are described as new to science, viz. A.asperoides Jirapatrasilp & Lee, sp. nov. and A.ingensoides Jirapatrasilp & Lee, sp. nov., each of which is conchologically comparable to A.buelowi and A.ingens, respectively.
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Affiliation(s)
- Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, ThailandChulalongkorn UniversityBangkokThailand
- Leibniz Institute for the Analysis of Biodiversity Change, Martin-Luther-King-Platz 3, Hamburg, GermanyLeibniz Institute for the Analysis of Biodiversity ChangeHamburgGermany
| | - Chih-Wei Huang
- School of Life Science, National Taiwan Normal University, Taipei, TaiwanNational Taiwan Normal UniversityTaipeiTaiwan
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, ThailandChulalongkorn UniversityBangkokThailand
| | - Chi-Tse Lee
- Department of Life Sciences, National Chung Hsing University, Taichung, TaiwanNational Chung Hsing UniversityTaichungTaiwan
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Tongkerd P, Lwin N, Páll-Gergely B, Chanabun R, Pholyotha A, Prasankok P, Seesamut T, Siriwut W, Srisonchai R, Sutcharit C, Panha S. Contributions of a small collection of terrestrial microsnails (Pupilloidea, Hypselostomatidae) from Myanmar with description of three new species. Zookeys 2024; 1195:157-197. [PMID: 38525356 PMCID: PMC10958184 DOI: 10.3897/zookeys.1195.112112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Accepted: 02/09/2024] [Indexed: 03/26/2024] Open
Abstract
Land snails were collected for the project 'Conserving Myanmar's Karst Biodiversity' from the limestone karsts in Mon, Kayin, and Shan states and in the regions of Tanintharyi and Mandalay between 2015 and 2017, through cooperation with Fauna and Flora International (FFI) and the Forestry Department of Myanmar. Here, we report on a portion of the collection, and list 17 species from seven genera of the Hypselostomatidae microsnails. Three new species from two genera are described as Bensonellataiyaiorum Tongkerd & Panha, sp. nov., B.lophiodera Tongkerd & Panha, sp. nov., and Gyliotrachelaaunglini Tongkerd & Panha, sp. nov. All new species are known only from the type locality in Shan State (Bensonella) and Kayin State (Gyliotrachela). A new combination of Acinolaemusdayanum and three newly recorded species, namely A.cryptidentatus, B.anguloobtusa and G.hungerfordiana are discussed. The low morphological variability of the widely distributed G.hungerfordiana is discussed, and two species are proposed for formal synonymisation. Constituting the first records for Myanmar, five species of Bensonella and two species of Acinolaemus were collected.
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Affiliation(s)
- Piyoros Tongkerd
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Ngwe Lwin
- Fauna and Flora International, No. 35, 3rd Floor, Shan Gone Condo, Myay Ni Gone Market Street, Sanchaung Township, Yangon, Myanmar
| | - Barna Páll-Gergely
- Plant Protection Institute, Centre for Agricultural Research, ELKH, Herman Ottó út 15, 1022 Budapest, Hungary
| | - Ratmanee Chanabun
- Program in Animal Science, Faculty of Agricultural Technology, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, Thailand
| | - Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Pongpun Prasankok
- Biodiversity and Utilization Research Unit, Center of Excellence in Modern Agriculture, Sakon Nakhon Rajabhat University, Sakon Nakhon 47000, Thailand
| | - Teerapong Seesamut
- School of Biology, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Warut Siriwut
- Department of Biology, Faculty of Science, Rangsit University, Pathum Thani 12000, Thailand
| | - Ruttapon Srisonchai
- Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
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Boonmachai T, Bergey EA, Wongsawad C, Nantarat N. Influence of limestone and anthropogenic activities on land snail communities in Satun Province, Thailand. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169372. [PMID: 38104843 DOI: 10.1016/j.scitotenv.2023.169372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
Southeast Asia is renowned for its rich biodiversity and serves as a global hotspot for organisms. Satun Province, located in southern Thailand, represents a significant biogeographic and biodiversity region situated in the transition zone between the Indochinese and Sundaland hotspots. Thus, Satun Province has high diversity and abundance of organisms, especially land snails. However, Satun Province has been largely understudied for both diversity and biogeography. Our study aimed to investigate land snail communities, emphasizing comparisons between the mainland and island sites, and the influence of limestone and other rock types in Satun Province. Our exploration efforts identified a diverse land snail community comprising 17 families, which updated the total reported species in the province from 22 to 58 species. The results showed that islands had significantly greater land snail species richness and abundance, and larger Shannon index values in comparison to the mainland. Anthropogenic activities on the mainland led to habitat transformation and had detrimental impacts on native land snail diversity while promoting the spread of invasive species. In contrast, the presence of little-disturbed limestone habitats on some of the islands contributed to higher richness of land snails, as limestone areas are known for their high diversity and endemism. Snail communities varied along site characteristics; especially, limestone versus non-limestone areas and human activity levels (which were associated with national park protection), with limestone and protected areas having the highest diversity. Our study illustrates the value of protected areas as potential hotspots of biodiversity, especially for islands that are little disturbed by human activities and that have habitats that support high diversity, such as limestone outcrops. This study provides valuable insights into the biogeography of land snails in Satun Province and Southeast Asia and contributes to our understanding of the factors influencing land snail diversity.
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Affiliation(s)
- Tuangthong Boonmachai
- Ph.D. Degree Program in Biology (International Program), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Department of Biology, Faculty of Science, Chiang Mai University, 50200, Thailand; Oklahoma Biological Survey, University of Oklahoma, Norman, OK 73019, United States of America
| | - Elizabeth A Bergey
- Department of Biology, Faculty of Science, Chiang Mai University, 50200, Thailand; Oklahoma Biological Survey, University of Oklahoma, Norman, OK 73019, United States of America
| | - Chalobol Wongsawad
- Department of Biology, Faculty of Science, Chiang Mai University, 50200, Thailand
| | - Nattawadee Nantarat
- Department of Biology, Faculty of Science, Chiang Mai University, 50200, Thailand; Environmental Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand; Science and Technology Research Institute, Chiang Mai University, Chiang Mai 50200, Thailand.
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6
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Pholyotha A, Yano D, Mizuno G, Sutcharit C, Tongkerd P, Oba Y, Panha S. A new discovery of the bioluminescent terrestrial snail genus Phuphania (Gastropoda: Dyakiidae). Sci Rep 2023; 13:15137. [PMID: 37704646 PMCID: PMC10499882 DOI: 10.1038/s41598-023-42364-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 09/09/2023] [Indexed: 09/15/2023] Open
Abstract
The mysterious world of the bioluminescent molluscs in terrestrial ecosystems is mesmerizing, but Quantula striata was previously the only terrestrial mollusc known to be luminescent. Here, we document the new discovery of bioluminescence in four land snails, namely Phuphania crossei, P. globosa, P. carinata, and P. costata. Our observations establish clearly that these four species of Phuphania produce a continuous greenish light from the light-emitting cells located within the mantle and the foot, and that its bright luminescence is intracellular and is not due to any luminous secretion. Although both Quantula and Phuphania can produce a green light, the luminescence patterns are different. The luminescence displayed by Quantula is rhythmical blinking or flashing, while Phuphania glows continuously. In addition, the bioluminescence in Q. weinkauffiana is confirmed, which is similar to that in the related species, Q. striata.
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Affiliation(s)
- Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Daichi Yano
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Gaku Mizuno
- Department of Environmental Biology, Chubu University, Kasugai, 487‑8501, Japan
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Piyoros Tongkerd
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Yuichi Oba
- Department of Environmental Biology, Chubu University, Kasugai, 487‑8501, Japan.
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
- Academy of Science, The Royal Society of Thailand, Bangkok, 10300, Thailand.
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Tumpeesuwan S, Tanmuangpak K, Tumpeesuwan C. New species of the dancing semislug Cryptosemelus Collinge, 1902 (Eupulmonata, Ariophantidae) from Loei Province, northeastern Thailand with a key to genera of mainland Southeast Asian semislugs and a key to species of the genus. Zookeys 2023; 1163:47-59. [PMID: 37250364 PMCID: PMC10220496 DOI: 10.3897/zookeys.1163.103650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 04/29/2023] [Indexed: 05/31/2023] Open
Abstract
In this study, we describe a new dancing semislug from a limestone hill area in northeastern Thailand. Cryptosemelusnigersp. nov. differs from the three recognized congener species from western and southern Thailand, due to differences in their body and shell lobes coloration, appearance of penial caecum, shape and surface texture of penis and epiphallus, and radula formula and morphology.
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Affiliation(s)
- Sakboworn Tumpeesuwan
- Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Kitti Tanmuangpak
- Palaeontological Research and Education Centre, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
| | - Chanidaporn Tumpeesuwan
- Department of Biology, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand
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Boonmachai T, Bergey EA, Nantarat N. First record and description of three new species in the land snail genus Diplommatina Benson, 1849 (Caenogastropoda, Diplommatinidae) from Satun Province, Thailand. ZOOSYST EVOL 2023. [DOI: 10.3897/zse.99.99030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023] Open
Abstract
The micro land snail genus Diplommatina (family Diplommatinidae) is widely distributed in Southeast Asia and includes many endemic species. Three new species of Diplommatina are described from Satun Province in southern Thailand. Diplommatina bulonensissp. nov., D. laemsonensissp. nov. and D. prakaiphetensissp. nov. are distinguished from other species in the genus by their shell size and shape, the number of radial ribs on the penultimate whorl, the number of whorls, and features of the peristome. The agreement between phylogenetic tree based on analyses of COI and 16S sequences and comparative morphology support the delineation of these new species which, when compared to related species, belong to well-differentiated clades. The K2P distance between any of the three new species and other Diplommatina species included in the molecular phylogenetic analysis was at least 5.5% in COI and 3.9% in 16S. Two of the three new species (D. prakaiphetensissp. nov. and D. bulonensissp. nov.) are apparently endemic to Prakaiphet Hill and Bulon Pai Island, respectively. Additionally, we documented a new regional record for D. naiyanetri in Satun Province. These new species and records contribute to the knowledge of Thailand’s land snail biodiversity and highlight the need of conservation protections for regional karst habitats.
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Páll-Gergely B, Hunyadi A, Vermeulen JJ, Grego J, Sutcharit C, Reischütz A, Dumrongrojwattana P, Botta-Dukát Z, Örstan A, Fekete J, Jochum A. Five times over: 42 new Angustopila species highlight Southeast Asia’s rich biodiversity (Gastropoda, Stylommatophora, Hypselostomatidae). Zookeys 2023. [DOI: 10.3897/zookeys.1147.93824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023] Open
Abstract
The Southeast Asian genus Angustopila, currently comprising 13 nominal species, encompasses the world’s tiniest land snails. This work shows that there are far more species than previously suspected, and that this genus is in fact, a very speciose group of tiny snails widely distributed in Southeast Asia. Angustopila is revised based on type material of known species as well as 211 samples newly collected in China, Laos, Myanmar, Thailand and Vietnam. Altogether, 53 species and one subspecies are recognised, of which 42 species and subspecies are new to science: A. akrodon Páll-Gergely & Hunyadi, sp. nov., A. apiaria Páll-Gergely & Hunyadi, sp. nov., A. apiostoma Páll-Gergely & Vermeulen, sp. nov., A. apokritodon Páll-Gergely & Hunyadi, sp. nov., A. antidomedon Páll-Gergely & Hunyadi, sp. nov., A. babel Páll-Gergely & Vermeulen, sp. nov., A. bathyodon Páll-Gergely & Hunyadi, sp. nov., A. bidentata Páll-Gergely & Jochum, sp. nov., A. cavicola Páll-Gergely & Dumrongrojwattana, sp. nov., A. cicatricosa Páll-Gergely & Vermeulen, sp. nov., A. coprologos uninodus Páll-Gergely & Grego, ssp. nov., A. erawanica Páll-Gergely & Dumrongrojwattana, sp. nov., A. fratermajor Páll-Gergely & Vermeulen, sp. nov., A. fraterminor Páll-Gergely & Vermeulen, sp. nov., A. gracilis Páll-Gergely & Hunyadi, sp. nov., A. halongensis Páll-Gergely & Vermeulen, sp. nov., A. hyron Páll-Gergely & Vermeulen, sp. nov., A. maasseni Páll-Gergely & Vermeulen, sp. nov., A. majuscula Páll-Gergely & Hunyadi, sp. nov., A. margaritarion Páll-Gergely & Hunyadi, sp. nov., A. megastoma Páll-Gergely & Vermeulen, sp. nov., A. occidentalis Páll-Gergely & Hunyadi, sp. nov., A. oostoma Páll-Gergely & Vermeulen, sp. nov., A. papaver Páll-Gergely & Hunyadi, sp. nov., A. parallela Páll-Gergely & Hunyadi, sp. nov., A. prolixa Páll-Gergely & Hunyadi, sp. nov., A. pusilla Páll-Gergely & Hunyadi, sp. nov., A. pustulata Páll-Gergely & Hunyadi, sp. nov., A. quadridens Páll-Gergely & Vermeulen, sp. nov., A. rara Páll-Gergely & Hunyadi, sp. nov., A. reticulata Páll-Gergely & Hunyadi, sp. nov., A. somsaki Páll-Gergely & Hunyadi, sp. nov., A. steffeki Páll-Gergely & Grego, sp. nov., A. tetradon Páll-Gergely & Hunyadi, sp. nov., A. thersites Páll-Gergely & Vermeulen, sp. nov., A. tonkinospiroides Páll-Gergely & Vermeulen, sp. nov., A. tridentata Páll-Gergely & Hunyadi, sp. nov., A. tweediei Páll-Gergely & Hunyadi, sp. nov., A. uvula Páll-Gergely & Hunyadi, sp. nov., A. vandevenderi Páll-Gergely & Jochum, sp. nov., A. vitrina Páll-Gergely & Hunyadi, sp. nov., A. vomer Páll-Gergely & Hunyadi, sp. nov., A. werneri Páll-Gergely & Hunyadi, sp. nov.
Angustopila subelevata Páll-Gergely & Hunyadi, 2015 is moved to the synonymy of Angustopila elevata (F. G. Thompson & Upatham, 1997), and A. singuladentis Inkhavilay & Panha, 2016 is a junior synonym of A. fabella Páll-Gergely & Hunyadi, 2015. Three species, namely A. elevata, A. fabella and A. szekeresi, are widespread over several hundred kilometres while some other species (A. huoyani, A. parallelasp. nov., A. cavicolasp. nov.) are known from just two sites a few hundred kilometres apart. All others are small range or single-site endemics. The reproductive anatomy of A. erawanicasp. nov. is described.
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Tongkerd P, Tumpeesuwan S, Inkhavilay K, Prasankok P, Jeratthitikul E, Panha S, Sutcharit C. Systematic revision of the snorkel snail genus Rhiostoma Benson, 1860 (Gastropoda, Caenogastropoda, Cyclophoridae) with descriptions of new species. Zookeys 2023; 1142:1-144. [DOI: 10.3897/zookeys.1142.90097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 11/21/2022] [Indexed: 01/26/2023] Open
Abstract
The snorkel snail genus Rhiostoma Benson, 1860 is comprised of terrestrial cyclophorid snails with wide-ranging species diversity and radiation in Southeast Asia. The typical characters of the genus are a depressed shell, a detached and descending portion of the last whorl with a distinctive peristomal breathing device attached, and a calcareous cup-shaped operculum. Herein, we have revised the systematics of extant species based on shell morphology combined with COI barcoding. From these thirty recognised species, twelve are described as new to science: R. ? amarapuraensesp. nov., R. anceyisp. nov., R. breviocollarsp. nov., R. ebenozosterasp. nov., R. cheliopegmasp. nov., R. furfurosumsp. nov., R. gnomus, sp. nov., R. lannaensesp. nov., R. laoensesp. nov., R. platymorphasp. nov., R. rhothonotaphrosasp. nov., and R. tigrinasp. nov. All conchological characters are provided via illustrations of type specimens and living snails, and descriptions of the shells and radulae. Phylogenetic analysis based on partial COI gene sequences strongly supports the designated morphospecies and a monophyletic Rhiostoma, confirming that all pterocyclinid snails with a calcareous, cup-shaped operculum belong to the same clade. A high intra-specific divergence was observed in R. jalorensis and R. housei populations from locations in close proximity, suggesting a lower dispersal and higher level of isolation. The low inter-specific divergence found in R. hainesi, R. samuiense, R. asiphon, and R. rhothonotaphrosasp. nov. supports their recent diversification and local adaptation, and is congruent with their marked morphological differences. Finally, nine formerly Rhiostoma-placed species were reclassified into either the genus Cyclotus or the genus Opisthoporus.
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11
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Lee CT, Huang CW, Hwang CC, Sutcharit C, Jirapatrasilp P. Arboreal snail genus Amphidromus Albers, 1850 of Southeast Asia: Shell polymorphism of Amphidromus cruentatus (Morelet, 1875) revealed by phylogenetic and morphometric analyses. PLoS One 2022; 17:e0272966. [PMID: 36037160 PMCID: PMC9423684 DOI: 10.1371/journal.pone.0272966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 07/19/2022] [Indexed: 11/24/2022] Open
Abstract
Species of colourful arboreal snails of the genus Amphidromus from Southeast Asia commonly exhibit high intraspecific variation in shell morphology. Although highly polymorphic Amphidromus specimens with different colouration have been collected at the same locality and were revealed to possess similar genital organs, there is yet no morphometric or DNA analyses of these different shell morphs. This study is the first to reveal that both striped and stripeless morphs of A. cruentatus from Laos and Vietnam belong to the same mitochondrial (COI and 16S rRNA) lineage. Although the shell colouration between the striped and stripeless morphs is markedly different, morphometric and shell outline-based analyses indicated an overall similarity in shell shape. We also revised the systematics of A. cruentatus, in which we treated similar related species, namely A. eudeli, A. fuscolabris, A. thakhekensis, A. gerberi bolovenensis, A. goldbergi, A. pengzhuoani, A. eichhorsti and A. pankowskiae as junior synonyms of A. cruentatus. Amphidromus daoae, A. anhdaoorum, A. stungtrengensis, A. yangbayensis and A. yenlinhae, which were formerly regarded as junior synonyms, are considered as species different from A. cruentatus based on shell morphology and morphometric analyses. Preliminary phylogenetic analyses also retrieved some Amphidromus species groups as distinct mitochondrial lineages.
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Affiliation(s)
- Chi-Tse Lee
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Chih-Wei Huang
- School of Life Science, National Taiwan Normal University, Taipei, Taiwan
| | - Chung-Chi Hwang
- Department of Life Sciences, National University of Kaohsiung, Kaohsiung, Taiwan
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Jirapatrasilp P, Sutcharit C, Panha S. Annotated checklist of the operculated land snails from Thailand (Mollusca, Gastropoda, Caenogastropoda): the family Pupinidae, with descriptions of several new species and subspecies, and notes on classification of Pupina Vignard, 1829 and Pupinella Gray, 1850 from mainland Southeast Asia. Zookeys 2022; 1119:1-115. [PMID: 36762355 PMCID: PMC9848625 DOI: 10.3897/zookeys.1119.85400] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 07/22/2022] [Indexed: 11/12/2022] Open
Abstract
Thailand is located at the crossroads of several biogeographical regions, and boasts a high level of biodiversity, especially among the malacofauna. The most recent checklist of land snail species in Thailand was compiled more than twenty years ago, and so this checklist needs revision and the addition of newly discovered taxa. This study updates the taxonomy and species list of the operculated land snail family Pupinidae from Thailand. This snail family is diverse and abundant, and can be found in various natural habitats in Southeast Asia. Although the taxonomy of some Southeast Asian pupinid genera has been reviewed, studies of Pupina Vignard, 1829, which contains the highest number of species, and a lesser-known genus Pupinella Gray, 1850 are still lacking. Herein we present an annotated checklist with an up-to-date systematic framework of the Pupinidae in Thailand based on both field investigations and literature surveys, and include the taxonomic treatment of all Pupina and Pupinella species from mainland Southeast Asia. This annotated checklist contains 30 nominal species and two subspecies from seven genera currently known to occur in Thailand. We describe two species of Pseudopomatias (P.doiangkhangensis Jirapatrasilp, sp. nov. and P.pallgergelyi Jirapatrasilp, sp. nov.), five species and one subspecies of Pupina (P.bensoni Jirapatrasilp, sp. nov., P.bilabiata Jirapatrasilp, sp. nov., P.godwinausteni Jirapatrasilp, sp. nov., P.latisulci Jirapatrasilp, sp. nov., P.stoliczkai Jirapatrasilp, sp. nov., and P.dorriisanensis Jirapatrasilp, ssp. nov.) as new to science. New records of Coptocheilussumatranus, Pupinellamansuyi, and Rhaphaulustonkinensis are also reported from Thailand. The mainland Southeast Asian Pupina species are classified into three species groups (Pupinaartata group, Pupinaarula group, and Pupinaaureola group) based on the distinction of shell teeth and canals, and operculum. Three species formerly in Pupina from Vietnam are allocated to Pupinella (P.illustris comb. nov., P.sonlaensis comb. nov., and P.thaitranbaii comb. nov.) due to the presence of a funnel-like anterior canal.
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Affiliation(s)
- Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandChulalongkorn UniversityBangkokThailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandChulalongkorn UniversityBangkokThailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandChulalongkorn UniversityBangkokThailand,Academy of Science, The Royal Society of Thailand, Bangkok 10300, ThailandAcademy of Science, The Royal Society of ThailandBangkokThailand
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Jirapatrasilp P, Huang CW, Hwang CC, Sutcharit C, Lee CT. Convergent evolution of. INVERTEBR SYST 2022. [DOI: 10.1071/is21015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
East Asian terrestrial snails of the family Camaenidae Pilsbry, 1895a are diverse in terms of genus and species numbers, shell morphology and mode of living. This family also includes colourful conical arboreal snails that traditionally have been assigned to the genus Amphidromus Albers, 1850. Yet, the present study shows that, despite their deceiving conchological similarity, some of these East Asian arboreal snails do not belong to the genus Amphidromus or the subfamily Camaeninae Pilsbry, 1895a. The presence of a dart complex comprising a mucous gland, a dart sac, an accessory sac and a proximal accessory sac, along with a pronounced penial caecum and molecular phylogenetic analyses revealed that former ‘Amphidromus’ dautzenbergi, ‘A.’ roemeri and ‘Camaena’ mirifica, and one additional new species belong to Aegistohadra Wu, 2004 (subfamily Bradybaeninae Pilsbry, 1934). Aegistohadra dautzenbergi, comb. nov. and Aegistohadra roemeri, comb. nov. are conical with colourful spiral bands, whereas Aegistohadra mirifica, comb. nov. and Aegistohadra zhangdanae, sp. nov. are heliciform to conical with colourful, variegated spiral and transverse banding patterns. DNA sequence analyses also revealed that each variety of Aegistohadra dautzenbergi could not be differentiated by mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) gene fragments. The phylogenetic position of Aegistohadra within the East Asian camaenids revealed that the similar appearance in shell morphology, microhabitat use and diet to arboreal snails in the genus Amphidromus is homoplastic. Moreover, the presence or absence of a dart complex is also homoplastic and is unsuitable for suprageneric classification. By contrast, the presence of a flagellum and a penial caecum is useful for the suprageneric classification.
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Multigene phylogeny reveals the ribbed shell morphotypes in the land snail genus Sarika (Eupulmonata: Ariophantidae), with description of two new species from Thailand and Myanmar. CONTRIBUTIONS TO ZOOLOGY 2022. [DOI: 10.1163/18759866-bja10027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Abstract
The speciose land snail genus Sarika is widely distributed throughout mainland Southeast Asia. This genus is generally recognized by a smooth and polished shell. However, we recognize four species with a ribbed shell surface (S. siamensis, S. theodori, S. costabilis sp. nov., and S. costata sp. nov.) exhibiting genital characters similar to those of Sarika s.s. and so a rearrangement in the systematics of the genus is suggested. Here, we analysed these four ribbed shell species together with Sarika s.s. by a combined morphological and molecular approach to species delineation, the latter based on both mitochondrial (coi and 16S) and nuclear (28S) markers. Our molecular phylogeny affirms the monophyly of the genus Sarika including both smooth and ribbed shell morphotypes that is statistically well supported. The ribbed shell morphotype in the land snail genus Sarika is also well defined in terms of diagnostic morpho-anatomical characters that can be divided into two species groups. The S. costata species group consists of only one species, S. costata sp. nov., while the S. siamensis species group comprises S. siamensis, S. theodori and S. costabilis sp. nov. These findings provide a solid basis for the systematics of family Ariophantidae.
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Foon JK, Marzuki ME. A new species of Acmella (Gastropoda: Assimineidae) from Peninsular Malaysia. FOLIA MALACOLOGICA 2022. [DOI: 10.12657/folmal.030.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A new species Acmella paeninsularis from the limestone hills of Perak, Peninsular Malaysia is described based on an ample material. Its diagnostic characters in comparison with related species are given.
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Foon JK, Marzuki ME. First record and description of a new Scabrina species (Gastropoda: Cyclophoridae) from Peninsular Malaysia. FOLIA MALACOLOGICA 2022. [DOI: 10.12657/folmal.030.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
A new species Scabrina belang from the limestone hills of north-western Peninsular Malaysia is described. This operculated land snail of the family Cyclophoridae differs from its nearest congeners S. calyx and S. inglisianus in a combination of characters namely, a notched inner peristome, a wing-like extension at the outer peristome at the parieto-palatal region and a flatter shell. This is the first record of the genus Scabrina in Peninsular Malaysia, extending the known range of the genus 1,000 km southwards.
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Pholyotha A, Sutcharit C, Panha S. Rediscovering the dancing semislug genus Cryptosemelus Collinge, 1902 (Eupulmonata, Ariophantidae) from Thailand with description of two new species. Zookeys 2022; 1076:43-65. [PMID: 34975273 PMCID: PMC8674216 DOI: 10.3897/zookeys.1076.75576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Accepted: 11/08/2021] [Indexed: 11/13/2022] Open
Abstract
Knowledge of Thai semislugs remains scarce, especially the dancing semislug genus Cryptosemelus. Prior to the present study, only a single species has been recognized with little available information. To address this knowledge gap, we surveyed for semislugs in western and southern Thailand, which yielded three species belonging to the genus Cryptosemelus. The little-known type species C.gracilis is redescribed herein, including a comparison with the type specimens. Two additional species, C.betarmonsp. nov. and C.tigrinussp. nov., are described as new to science. All three species are characterized by differences in their genital anatomy, especially with respect to anatomical details of the penis, epiphallus, and spermatophore. In addition, C.tigrinussp. nov. differs from C.gracilis and C.betarmonsp. nov. in the mantle color pattern.
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Affiliation(s)
- Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.,Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand Academy of Science, The Royal Society of Thailand Bangkok Thailand
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Pholyotha A, Sutcharit C, Jirapatrasilp P, Ngor PB, Oba Y, Panha S. Molecular phylogenetic and morphological evidence reveal a rare limacoid snail genus, Khmerquantula gen. nov. (Eupulmonata: Dyakiidae) from Cambodia. SYST BIODIVERS 2021. [DOI: 10.1080/14772000.2021.1970045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Peng Bun Ngor
- Inland Fisheries Research and Development Institute (IFReDI), Fisheries Administration, PO Box 582, No. 86, Norodom Blvd, Phnom Penh, Cambodia
- Wonders of the Mekong Project, PO Box 582, c/o IFReDI, No. 86, Norodom Blvd, Phnom Penh, Cambodia
| | - Yuichi Oba
- Department of Environmental Biology, Chubu University, Kasugai, 487-8501, Japan
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, 10300, Thailand
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Sutcharit C, Naggs F, Ablett JD, Sang PV, Van Hao L, Panha S. Anatomical note on a tree snail Amphidromus (Amphidromus) cambojiensis (Reeve, 1860) from Vietnam (Eupulmonata: Camaenidae). J NAT HIST 2021. [DOI: 10.1080/00222933.2021.1933230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Fred Naggs
- Mollusca Section, Invertebrates Division, Department of Life Sciences, Natural History Museum, London, UK
| | - Jonathan D. Ablett
- Mollusca Section, Invertebrates Division, Department of Life Sciences, Natural History Museum, London, UK
| | - Pham Van Sang
- Vietnam National Museum of Nature (VNMN), Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Luong Van Hao
- Sa Pa Medicinal Research Center, Sa Pa, Lao Cai, Vietnam
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Sutcharit C, Panha S. Systematic review of the dextral Hemiplecta Albers, 1850 (Eupulmonata, Ariophantidae) from Thailand with description of a new species and list of all the Indochinese species. Zookeys 2021; 1047:101-154. [PMID: 34248368 PMCID: PMC8257565 DOI: 10.3897/zookeys.1047.65735] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/31/2021] [Indexed: 11/12/2022] Open
Abstract
The genus Hemiplecta is a group of large-sized land snails which have long been used as a food resource by Indochinese people. There are five dextral and four sinistral species currently recognized from Thailand. The dextral group is comprised of two previously recorded species (H. humphreysiana and H. distincta), two newly recorded species (H. funerea and H. esculenta), and one new species (H. nemorosa sp. nov.) from northern Thailand is being proposed. We reassessed the diagnostic characters of the genitalia, mantle edge, and radula. Specimens were classified into the genus Hemiplecta on the basis of the penial verge and shell lobe, and on the characters of a bulbous gametolytic sac without a gametolytic duct. A complete species list, together with photographs of the name-bearing types or authenticated specimens and the taxonomic status of Hemiplecta s.l. that are known from Indochina including Peninsular Malaysia and Myanmar, is provided for the first time. In total, this species list contains 39 available nominal species names described from this area. Type or authentic specimens can be located for 37 nominal species names, of which 25 are illustrated herein and the other 12 were recently illustrated. However, two available species-level names could not be traced to any type specimens. In addition, lectotypes of H. funerea and H. pluto are designated herein to stabilize the names.
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Affiliation(s)
- Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandChulalongkorn UniversityBangkokThailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, ThailandChulalongkorn UniversityBangkokThailand
- Academy of Science, The Royal Society of Thailand, Bangkok 10300, ThailandAcademy of Science, The Royal Society of ThailandBangkokThailand
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21
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Wang YC, Chen ZY. A new species of Amphidromus Albers, 1850 (Gastropoda: Stylommatophora: Camaenidae) from China, with notes on Amphidromus species. FOLIA MALACOLOGICA 2021. [DOI: 10.12657/folmal.029.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Amphidromus zelosus n. sp. from Guangxi Zhuang Autonomous Region, China, is described and illustrated. A. wani He et Zhou, 2017 is synonymised with A. qiongensis He et Zhou, 2017. Additional data on A. sinensis sinensis (Benson, 1851) are given.
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Paz-Sedano S, Wilson NG, Carmona L, Gosliner TM, Pola M. An ocean yet to be discovered: increasing systematic knowledge of Indo-Pacific Okenia Menke, 1830 (Nudibranchia:Goniodorididae). INVERTEBR SYST 2021. [DOI: 10.1071/is20088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Numerous faunistic and ecological studies have been conducted throughout the Indo-Pacific Ocean to assess its biodiversity. Despite the abundance of research, studies on the species that inhabit the Indo-Pacific are still necessary due to its extent and high species richness. The major species richness of the genus Okenia Menke, 1830 (Nudibranchia, Goniodorididae) is found in the Indo-Pacific Ocean, including 38 of 60 valid species. Nevertheless, this number does not represent the real biodiversity, since at least 20 more species are already reported in field-guides as undescribed species belonging to this genus. The systematics of the genus Okenia are still unclear since it has been the subject of only a few and incomplete studies. In the present paper, we describe five new Okenia species from the coastlines of Japan, Mozambique and Australia: Okenia aurorapapillata sp. nov., Okenia elisae sp. nov., Okenia nakanoae sp. nov., Okenia siderata sp. nov. and Okenia tenuifibrata sp. nov. Moreover, anatomical details not previously described of Okenia atkinsonorum, Okenia barnardi, Okenia cf. echinata, Okenia hallucigenia, Okenia hiroi, Okenia japonica, Okenia pellucida, Okenia pilosa and Okenia rhinorma are provided. New partial sequences of standard markers (COI, 16S rRNA and H3) were obtained and a phylogenetic analysis that included all species with available data was performed.
ZOOBANK urn:lsid:zoobank.org:pub:28AE2536-A264–4194–8AE3-C430620572E7
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Dedov IK, Schneppat UE, Reise H, Quang Vu M. First record of an agriolimacid slug in Southeast Asia - Deroceras laeve (O. F. Müller, 1774) (Gastropoda: Pulmonata) recently introduced to the Socialist Republic of Vietnam. Biodivers Data J 2020; 8:e59644. [PMID: 33328779 PMCID: PMC7728728 DOI: 10.3897/bdj.8.e59644] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 11/27/2020] [Indexed: 12/03/2022] Open
Abstract
Several individuals of the terrestrial slug Deroceraslaeve were collected in 2018 in the Hoàng Liên Son mountain range of northern Vietnam. The three specimens which were investigated anatomically were aphallic or hemiphallic. A partial COI sequence verified the species identity. This is the first discovery of D.laeve and also of the slug family Agriolimacidae on the Indochinese Peninsula. The collecting site is situated near a cable-car station and below a tourist complex on Fansipan mountain, both of which had just been built by a Swiss-Austrian company between 2013 and 2016. This and the fact that the species had not been found elsewhere in the surrounding area, although searched for thoroughly, indicate that D.laeve is most probably a recent introduction, potentially with building material from Austria or Switzerland.
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Affiliation(s)
- Ivailo Kanev Dedov
- Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia 1113, 2 Gagarin Str., Bulgaria Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences Sofia 1113, 2 Gagarin Str. Bulgaria
| | - Ulrich E Schneppat
- retired, CH-7074, Churwalden-Malix, Sennereiweg 8, Switzerland retired CH-7074, Churwalden-Malix, Sennereiweg 8 Switzerland
| | - Heike Reise
- Senckenberg Museum of Natural History Görlitz, Am Museum 1, 02826 Görlitz, Germany Senckenberg Museum of Natural History Görlitz, Am Museum 1 02826 Görlitz Germany
| | - Manh Quang Vu
- Hanoi National University of Education, Hanoi, 136 Xuan Thuy Rd., DHSP Cau Giay, Vietnam Hanoi National University of Education Hanoi, 136 Xuan Thuy Rd., DHSP Cau Giay Vietnam
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Jirapatrasilp P, Tongkerd P, Jeratthitikul E, Liew TS, Pholyotha A, Sutcharit C, Panha S. Molecular phylogeny of the limacoid snail family Dyakiidae in Southeast Asia, with the description of a new genus and species. Zool J Linn Soc 2020. [DOI: 10.1093/zoolinnean/zlaa129] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Abstract
Members of the terrestrial snail family Dyakiidae from Southeast Asia show a distinct geographical distribution pattern and possess different degrees of complexity in their amatorial organ gland. This study is the first molecular phylogeny of ten of the 12 genera in this family, performed to provide insights into the origin of Dyakiidae and the evolution of their shells and amatorial organ gland structure. A new genus and new species, Pseudoquantula lenticularis Jirapatrasilp & Panha gen. & sp. nov., was uncovered based on its distinct morphological characters and molecular divergence. All other genera were retrieved as monophyletic except for Dyakia. Mainland Southeast Asia was inferred to be the ancestral range of the Dyakiidae, and the lineages then dispersed to and diversified in Borneo. Cladistic analysis showed that all 14 morphological characters used in this study were homoplastic. These results disagree with the previous amatorial organ transformation series, in which neither Pseudoplecta nor Quantula was ancestral to the other genera. The enigmatic genus Pseudoplecta, which lacks an amatorial organ gland, exhibited secondary loss.
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Affiliation(s)
- Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyoros Tongkerd
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Ekgachai Jeratthitikul
- Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok, Thailand
| | - Thor-Seng Liew
- Institute for Tropical Biology and Conservation, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu, Sabah, Malaysia
| | - Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Academy of Science, The Royal Society of Thailand, Bangkok, Thailand
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Wang P, Hu ML, Lin JH, Yang HF, Li XJ, Zhou WC. Descriptions of four new dextral land snails of the genus Camaena (Gastropoda, Eupulmonata, Camaenidae) from south China. Zookeys 2020; 996:37-58. [PMID: 33312045 PMCID: PMC7710680 DOI: 10.3897/zookeys.996.54187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 11/06/2020] [Indexed: 11/12/2022] Open
Abstract
In this study, four new dextral camaenid from China are reported, based on shell morphology, reproductive system anatomy, and molecular phylogenetic analyses: Camaenafuningensis Zhou, Wang & Lin, sp. nov., Camaenagaolongensis Zhou, Wang & Lin, sp. nov., Camaenamaguanensis Zhou, Wang & Hu, sp. nov., and Camaenayulinensis Zhou, Wang & Hu, sp. nov. Detailed descriptions of the morphological characteristics including shells and genitalia, DNA sequences, and living environments of the four new species are provided, with further comparisons with congeners.
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Páll-Gergely B, Sajan S, Tripathy B, Meng K, Asami T, Ablett JD. Genus-level revision of the Alycaeidae (Gastropoda, Cyclophoroidea), with an annotated species catalogue. Zookeys 2020; 981:1-220. [PMID: 33199958 PMCID: PMC7644702 DOI: 10.3897/zookeys.981.53583] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 08/15/2020] [Indexed: 11/30/2022] Open
Abstract
412 species-group names (including 11 replacement names), and 14 genus-group names of the Alycaeidae have been introduced to date. Type materials of 85% (336) of the known species and subspecies were examined, a further 5% (19) of the taxa were studied using available non-type material, and for another 6% (22) the original descriptions were sufficiently detailed to evaluate their taxonomic status. Only 3% of the taxa (12) could not be examined. Special attention was paid to the sculpture of the embryonic whorls and the sutural tube-microtunnel system in order to provide a novel classification for this group. In this study 363 taxa (320 species or 43 subspecies) are accepted within the family Alycaeidae. Of these, 22 have been described by the lead author and his coauthors in previous publications. In addition, there are 18 species that were formerly classified in Cycloryx and now belong to Pincerna due to its synonymy with Cycloryx. Among the remaining 323 species, 209 (65%) are transferred here to another genus, whilst 114 (35%) have remained in their original genus. Seven genera are accepted. While some questions (e.g., the distinction between Pincerna and Alycaeus) remained unanswered, this revision made three main achievements: (1) The Dicharax species were identified based on the absence of spiral striation on the entire shell; (2) the Metalycaeus species were identified based on the spiral striation of the protoconch; (3) and Stomacosmethis was separated from Alycaeus based on the extremely short sutural tube. Five nominal species are being synonymised with other species, and eight species are now treated as subspecies. The following replacement names are proposed: Dioryxurnulaniosiensis Páll-Gergely, nom. nov. for Alycaeusurnulavar.daflaensis Godwin-Austen, 1914; Dioryxurnularotundus Páll-Gergely, nom. nov. for Alycaeusurnulavar.globosus Godwin-Austen, 1914; Pincernacrenilabrisjuttingae Páll-Gergely, nom. nov. for Alycaeuscrenilabrislaevis van Benthem Jutting, 1959; Pincernacrenilabriskorintjiensis Páll-Gergely, nom. nov. for Alycaeuscrenilabrislatecostatus van Benthem Jutting, 1959; Dicharaxconicusjatingaensis Páll-Gergely, nom. nov. for Alycaeusconicusvar.nanus Godwin-Austen, 1914; Metalycaeusgodwinausteni Páll-Gergely, nom. nov. for Alycaeusneglectus Godwin-Austen, 1914; and finally Metalycaeussuhajdai Páll-Gergely, nom. nov. for Alycaeusvarius Godwin-Austen, 1914.
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Affiliation(s)
- Barna Páll-Gergely
- Plant Protection Institute, Centre for Agricultural Research, Herman Ottó út 15, Budapest, H-1022, Hungary Plant Protection Institute, Centre for Agricultural Research of the Hungarian Academy of Sciences (MTA) Budapest Hungary
| | - Sheikh Sajan
- Zoological Survey of India, Prani Vigyan Bhawan, M Block, New Alipore, Kolkata 700053, West Bengal, India Zoological Survey of India Kolkata India.,Wildlife Institute of India, Chandrabani, Dehradun 248 002, Uttarakhand, India Wildlife Institute of India Dehradun India
| | - Basudev Tripathy
- Zoological Survey of India, Prani Vigyan Bhawan, M Block, New Alipore, Kolkata 700053, West Bengal, India Zoological Survey of India Kolkata India
| | - Kaibaryer Meng
- National Zoological Museum of China, Institute of Zoology, Chinese Academy of Sciences, Beijing, China Institute of Zoology, Chinese Academy of Sciences Beijing China
| | - Takahiro Asami
- Department of Biology, Shinshu University, Matsumoto 390-8621, Japan Shinshu University Matsumoto Japan
| | - Jonathan D Ablett
- Mollusca Section, Invertebrates Division, Department of Life Sciences, The Natural History Museums, London SW7 5BD, United Kingdom Natural History Museum London United Kingdom
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Jochum A, Bochud E, Favre A, Ferrand M, Wackenheim Q. A new species of Laoennea microsnail (Stylommatophora, Diapheridae) from a cave in Laos. SUBTERRANEAN BIOLOGY 2020. [DOI: 10.3897/subtbiol.36.58977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The genus Laoennea (Streptaxoidea, Diapheridae) was erected by Páll-Gergely, 2020. The type species, Laoennea carychioides Páll-Gergely, A. Reischütz & Maassen, 2020 is so far only known from the type locality cave in Laos. Herein, we describe a second species, Laoennea renouardisp. nov., from a nearby cave in the same karst region of Vientiane Province.
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Dumrongrojwattana P, Kamtuptim C, Wongkamhaeng K. A review of Diplommatina species in eastern Thailand with the descriptions of five new species. Biodivers Data J 2020; 8:e57689. [PMID: 33110385 PMCID: PMC7554012 DOI: 10.3897/bdj.8.e57689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 09/21/2020] [Indexed: 11/12/2022] Open
Abstract
Background Microsnails in the genus Diplommatina Benson, 1849 from eastern Thailand are revised, based on the collection of the Zoological Research Collection, Burapha University, Chonburi Province, Thailand and on recently-collected materials. New information Five new species, Diplommatina burapha sp. n., D. chadathongae sp. n., D. chantaburiensis sp. n., D. fusiformis sp. n. and D. khwantongae sp. n., are described as new to science. The geographic distribution of these eastern species is presented.
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Affiliation(s)
- Pongrat Dumrongrojwattana
- Department of Biology, Faculty of Science, Burapha University, Chon Buri, Thailand Department of Biology, Faculty of Science, Burapha University Chon Buri Thailand
| | - Chanakarn Kamtuptim
- Department of Biology, Faculty of Science, Burapha University, Chon Buri, Thailand Department of Biology, Faculty of Science, Burapha University Chon Buri Thailand
| | - Koraon Wongkamhaeng
- Kasetsart University, Bangkok, Thailand Kasetsart University Bangkok Thailand
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Pholyotha A, Sutcharit C, Tongkerd P, Panha S. Integrative taxonomic revision of the land snail genus Sarika Godwin-Austen, 1907 in Thailand, with descriptions of nine new species (Eupulmonata, Ariophantidae). Zookeys 2020; 976:1-100. [PMID: 33173395 PMCID: PMC7591553 DOI: 10.3897/zookeys.976.53859] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/16/2020] [Indexed: 01/29/2023] Open
Abstract
Members of the land snail genus SarikaGodwin-Austen 1907 are superficially similar and difficult to differentiate by their shell morphology so that their species limits are still unclear. In order to resolve the taxonomy of this group, a phylogenetic reconstruction of Sarika is presented, based on morphological and anatomical characters, as well as on partial sequences of the mitochondrial cytochrome c oxidase subunit I (COI) gene. In total, 23 species of Sarika are recognised in Thailand, and nine species are new to science, namely S. caligina Pholyotha & Panha, sp. nov., S. gratesi Pholyotha & Panha, sp. nov., S. inferospira Pholyotha & Panha, sp. nov., S. lactospira Pholyotha & Panha, sp. nov., S. megalogyne Pholyotha & Panha, sp. nov., S. melanospira Pholyotha & Panha, sp. nov., S. pellosa Pholyotha & Panha, sp. nov., S. solemi Pholyotha & Panha, sp. nov., and S. subheptagyra Pholyotha & Panha, sp. nov. Results from genital examination and COI analyses confirm the monophyly of Sarika and its species. The intra- and inter-specific genetic distances of Sarika were 0-3.7% and 4.6-12.0%, respectively. Colour images of the living adults, shell, and genitalia along with SEM images of the spermatophore and radula are given. In addition, an identification key and a geographical distribution map of Sarika species are provided.
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Affiliation(s)
- Arthit Pholyotha
- Biological Sciences Program, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand.,Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Piyoros Tongkerd
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
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Sutcharit C, Inkhavilay K, Panha S. Taxonomic note on Trichelix horrida (Pfeiffer, 1863) from Laos, with a type catalogue of Moellendorffia, Trichelix, and Moellendorffiella (Heterobranchia, Camaenidae). Zookeys 2020; 952:65-93. [PMID: 32774112 PMCID: PMC7394776 DOI: 10.3897/zookeys.952.52695] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Accepted: 05/14/2020] [Indexed: 11/12/2022] Open
Abstract
Land snail surveys conducted in northern Laos between 2013 and 2014 have led to the discovery of a living population of Trichelix horrida (Pfeiffer, 1863). This species has never been recorded from specimens other than the types, and its distribution and anatomy have remained essentially unknown. The genitalia and radula morphology are documented here for the first time and employed to re-assess the systematic position of this species: the unique morphological characters of T. horrida are a penis similar in length to the vagina, a small and triangular penial verge, gametolytic organs extending as far as the albumen gland, head wart present, and unicuspid triangular radula teeth. The type locality of this species was believed to be from "Lao Mountains, Camboja," and is restricted herein to be Luang Phrabang Province, northern Laos. The assignment of species to either of three genera, Trichelix Ancey, 1887, Moellendorffia Ancey, 1887, and Moellendorffiella Pilsbry, 1905, based solely on information provided in their original descriptions is difficult. The type specimens of all nominal species presently placed in either of these three genera are examined and illustrated herein. Comparison with the primary type specimens will assist future revisions aiming to resolve the systematics of these taxa. In addition, we transfer Moellendorffia faberiana (Möllendorff, 1888) to the genus Moellendorffiella.
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Affiliation(s)
- Chirasak Sutcharit
- Animal Systematic Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Khamla Inkhavilay
- Department of Biology, Faculty of Natural Science, National University of Laos, P.O. Box 7322, Dongdok, Vientiane, Laos National University of Laos Vientiane Lao People's Democratic Republic
| | - Somsak Panha
- Animal Systematic Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
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Sutcharit C, Thach P, Chhuoy S, Ngor PB, Jeratthitikul E, Siriwut W, Srisonchai R, Ng TH, Pholyotha A, Jirapatrasilp P, Panha S. Annotated checklist of the land snail fauna from southern Cambodia (Mollusca, Gastropoda). Zookeys 2020; 948:1-46. [PMID: 32765170 PMCID: PMC7381483 DOI: 10.3897/zookeys.948.51671] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Accepted: 05/12/2020] [Indexed: 11/15/2022] Open
Abstract
Prior to this study, few collections and records were made of the land snails in Cambodia and the historical taxa had never been reviewed. Herein a report on the land snail diversity based on specimens collected recently from karstic and non-karstic areas in southern Cambodia is provided. This checklist presents 36 species of land snails (two Neritimorpha, six Caenogastropoda, and 28 Heterobranchia). Illustrations and brief taxonomic notes/remarks are provided for every species. We also described Georrisacarinata Sutcharit & Jirapatrasilp, sp. nov. based on some distinct shell morphological characters. Since the first descriptions during the colonial period in the nineteenth century, some land snail species (e.g., Trichochloritisnorodomiana, Durgellarusseola, Anceyoconchasiamensisobesulacomb. nov., Anceyoconchachaudoensiscomb. nov., and Succineatenuis) have not been reported subsequently. This probably reflects a lack of knowledge concerning land snail biodiversity in this country. To our knowledge, this is the first comprehensive survey of land snails in southern Cambodia. A need for more field research and systematic revision of the land snails in this interesting region is also highlighted and demonstrated.
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Affiliation(s)
- Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Phanara Thach
- Inland Fisheries Research and Development Institute (IFReDI), Fisheries Administration, No. 86, Norodom Blvd., PO Box 582, Phnom Penh, Cambodia Inland Fisheries Research and Development Institute Phnom Penh Cambodia
| | - Samol Chhuoy
- Inland Fisheries Research and Development Institute (IFReDI), Fisheries Administration, No. 86, Norodom Blvd., PO Box 582, Phnom Penh, Cambodia Inland Fisheries Research and Development Institute Phnom Penh Cambodia
| | - Peng Bun Ngor
- Inland Fisheries Research and Development Institute (IFReDI), Fisheries Administration, No. 86, Norodom Blvd., PO Box 582, Phnom Penh, Cambodia Inland Fisheries Research and Development Institute Phnom Penh Cambodia.,Wonders of the Mekong Project, c/o IFReDI, No. 86, Norodom Blvd., PO Box 582, Phnom Penh, Cambodia Wonders of the Mekong Project Phnom Penh Cambodia
| | - Ekgachai Jeratthitikul
- Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand Mahidol University Bangkok Thailand
| | - Warut Siriwut
- Animal Systematics and Molecular Ecology Laboratory, Department of Biology, Faculty of Science, Mahidol University, Bangkok 10400, Thailand Mahidol University Bangkok Thailand
| | - Ruttapon Srisonchai
- Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand Khon Kaen University Khon Kaen Thailand
| | - Ting Hui Ng
- Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore National University of Singapore Singapore Singapore
| | - Arthit Pholyotha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
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Pholyotha A, Sutcharit C, Tongkerd P, Lin A, Panha S. Taxonomic revision of the land snail genera Macrochlamys Gray, 1847 and Sarika Godwin-Austen, 1907 (Eupulmonata: Ariophantidae) from south-eastern Myanmar, with descriptions of three new species. MOLLUSCAN RESEARCH 2020. [DOI: 10.1080/13235818.2020.1723041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Arthit Pholyotha
- Biological Sciences Program, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Piyoros Tongkerd
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
| | - Aung Lin
- Fauna and Flora International, Yangon, Myanmar
| | - Somsak Panha
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand
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Páll-Gergely B, Hunyadi A, Auffenberg K. Taxonomic vandalism in malacology: comments on molluscan taxa recently described by N. N. Thach and colleagues (2014–2019). FOLIA MALACOLOGICA 2020. [DOI: 10.12657/folmal.028.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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von Oheimb KCM, von Oheimb PV, Hirano T, Do TV, Ablett J, Luong HV, Pham SV, Naggs F. Cryptic diversity of limestone karst inhabiting land snails (Cyclophorus spp.) in northern Vietnam, their evolutionary history and the description of four new species. PLoS One 2019; 14:e0222163. [PMID: 31644567 PMCID: PMC6808330 DOI: 10.1371/journal.pone.0222163] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 08/21/2019] [Indexed: 11/18/2022] Open
Abstract
Limestone karsts can form terrestrial habitat islands for calcium-dependent organisms. In Vietnam, many karst habitats are threatened, while their rich biodiversity is still far from being thoroughly explored. Given that conservation of karst biota strongly relies on correct species identification, the presence of undetected cryptic species can pose severe problems. The present study focuses on cryptic diversity among karst-inhabiting land snails of the genus Cyclophorus in northern Vietnam, where specimens with a similar shell morphology have been reported from various regions. In order to examine the diversity and evolutionary history of this “widespread morphotype”, we generated a Bayesian phylogeny based on DNA sequence data. Automatic Barcode Gap Discovery (ABGD) and the Bayesian implementation of the Poisson tree processes model (bPTP) contributed to species delimitation and analyses of shell shape and size aided the morphological characterisation of individual species. We found that the examined specimens of the widespread morphotype did not form a single monophyletic group in the phylogeny but clustered into several different clades. We delimited nine different species that develop the widespread morphotype and described four of them as new. Processes of convergent evolution were probably involved in the origin of the delimited species, while their generally allopatric distribution could result from interspecific competition. Our findings indicate ongoing processes of speciation and a potential case of morphological character displacement. The high degree of morphological overlap found among the species underlines the importance of DNA sequence data for species delimitation and description in the genus Cyclophorus. Given the findings of the present study and the high potential that as yet undiscovered cryptic taxa have also evolved in other groups of karst-inhabiting organisms, we argue for a systematic and efficient detection and description of Vietnam’s karst biodiversity to provide a solid basis for future conservation planning.
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Affiliation(s)
- Katharina C. M. von Oheimb
- Life Sciences Department, The Natural History Museum, London, England, United Kingdom
- Museum für Naturkunde – Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
- * E-mail:
| | - Parm Viktor von Oheimb
- Life Sciences Department, The Natural History Museum, London, England, United Kingdom
- Museum für Naturkunde – Leibniz Institute for Evolution and Biodiversity Science, Berlin, Germany
| | - Takahiro Hirano
- Department of Biological Sciences, University of Idaho, Moscow, Idaho, United States of America
| | - Tu Van Do
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Jonathan Ablett
- Life Sciences Department, The Natural History Museum, London, England, United Kingdom
| | - Hao Van Luong
- Centre for Rescue and Conservation of Organisms, Hoang Lien National Park, Sa Pa, Vietnam
| | - Sang Van Pham
- Department of Specimen Preparation and Exhibitive Design, Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, Ha Noi, Vietnam
| | - Fred Naggs
- Life Sciences Department, The Natural History Museum, London, England, United Kingdom
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Sutcharit C, Backeljau T, Panha S. Re-description of the type species of the genera Ganesella Blanford, 1863 and Globotrochus Haas, 1935; with description of a new Ganesella species from Thailand (Eupulmonata, Camaenidae). Zookeys 2019; 870:51-76. [PMID: 31423078 PMCID: PMC6694067 DOI: 10.3897/zookeys.870.36970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 07/16/2019] [Indexed: 11/29/2022] Open
Abstract
The taxonomy of the speciose genus Ganesella W.T. Blanford, 1863 and the endemic genus Globotrochus Haas, 1935 is unclear since the anatomical characters of the the type species of these two genera have never been reported before. Therefore, the present paper provides the first anatomical descriptions of the reproductive apparatus, pallial system and radula of Helixcapitium Benson, 1848 and Helixonestera Mabille, 1887, the respective type species of Ganesella and Globotrochus. In addition, Ganesellarhombostoma (Pfeiffer, 1861) and Ganesellacarinella (Möllendorff, 1902) from Thailand are re-described, and a new species, Ganesellahalabalah Sutcharit & Panha, sp. nov., from southern Thailand is described. This new species differs from all others by having a larger shell, an obtuse apex and an aperture lip with a prominent beak-like deflection.
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Affiliation(s)
- Chirasak Sutcharit
- Animal Systematic Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
| | - Thierry Backeljau
- University of Antwerp, Evolutionary Ecology Group, Groenenborgerlaan 171, B-2020 Antwerp, Belgium University of Antwerp Antwerp Belgium.,Royal Belgian Institute of Natural Sciences (JEMU & BopCo), Vautierstraat 29, B-1000 Brussels, Belgium Royal Belgian Institute of Natural Sciences Brussels Belgium
| | - Somsak Panha
- Animal Systematic Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand Chulalongkorn University Bangkok Thailand
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Páll-Gergely B. A new species of Hemiplecta Albers, 1850 from Vietnam (Gastropoda: Pulmonata: Ariophantidae). FOLIA MALACOLOGICA 2019. [DOI: 10.12657/folmal.027.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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