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Jimi N, Nakajima H, Sato T, Gonzalez BC, Woo SP, Rouse GW, Britayev T. Two new species of Parahesione (Annelida: Hesionidae) associated with ghost shrimps (Crustacea: Decapoda) and their phylogenetic relationships. PeerJ 2023; 11:e16346. [PMID: 37927790 PMCID: PMC10625355 DOI: 10.7717/peerj.16346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 10/03/2023] [Indexed: 11/07/2023] Open
Abstract
Two new species of Hesionidae, Parahesione pulvinata sp. nov. and Parahesione apiculata sp. nov. are described based on materials collected at tidal flats in Okinawa (Japan) from burrows of the ghost shrimps Neocallichirus jousseaumei and Glypturus armatus. The two new species are characterized by having eight enlarged cirri, dorsal cirrophores with dorsal foliose lobe and biramous parapodia, and by lacking median antenna. Parahesione apiculata sp. nov. has digitate lobes on the posterior margin of the dorsal foliose lobe (absent in P. pulvinata sp. nov.). The two new species were never found outside the ghost shrimp burrows, suggesting they are obligate symbionts. Phylogenetic analyses based on four concatenated genes suggest that the symbiotic lifestyle has evolved several times in Hesionidae.
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Affiliation(s)
- Naoto Jimi
- Nagoya University, Toba, Japan
- Centre for Marine and Coastal Studies, Universiti Sains Malaysia, Penang, Malaysia
| | | | - Taigi Sato
- University of the Ryukyus, Okinawa, Japan
| | - Brett C. Gonzalez
- Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology, Washington D.C., United States
| | | | - Greg W. Rouse
- Scripps Institution of Oceanography, California, United States
| | - Temir Britayev
- AN Severtzov Institute of Ecology and Evolution, Moscow, Russia
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Jimi N, Bessho-Uehara M, Nakamura K, Sakata M, Hayashi T, Kanie S, Mitani Y, Ohmiya Y, Tsuyuki A, Ota Y, Woo SP, Ogoh K. Investigating the diversity of bioluminescent marine worm Polycirrus (Annelida), with description of three new species from the Western Pacific. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230039. [PMID: 36998762 PMCID: PMC10049758 DOI: 10.1098/rsos.230039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 03/06/2023] [Indexed: 06/19/2023]
Abstract
Bioluminescence, a phenomenon observed widely in organisms ranging from bacteria to metazoans, has a significant impact on the behaviour and ecology of organisms. Among bioluminescent organisms, Polycirrus, which has unique emission wavelengths, has received attention, and advanced studies such as RNA-Seq have been conducted, but they are limited to a few cases. In addition, accurate species identification is difficult due to lack of taxonomic organization. In this study, we conducted comprehensive taxonomic survey of Japanese Polycirrus based on multiple specimens from different locations and described as three new species: Polycirrus onibi sp. nov., P. ikeguchii sp. nov. and P. aoandon sp. nov. The three species can be distinguished from the known species based on the following characters: (i) arrangement of mid-ventral groove, (ii) arrangement of notochaetigerous segments, (iii) type of neurochaetae uncini, and (iv) arrangement of nephridial papillae. By linking the bioluminescence phenomenon with taxonomic knowledge, we established a foundation for future bioluminescent research development. We also provide a brief phylogenetic tree based on cytochrome c oxidase subunit I (COI) sequences to discuss the evolution of bioluminescence and the direction of future research.
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Affiliation(s)
- Naoto Jimi
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, 429-63 Sugashima, Toba, Mie 517-0004, Japan
- Centre for Marine & Coastal Studies, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
| | - Manabu Bessho-Uehara
- Institute for Advanced Research, Nagoya University, 464-8601 Nagoya, Japan
- Graduate School of Science, Nagoya University, 464-8601 Nagoya, Japan
| | - Koji Nakamura
- Japan Underwater Films Co., Ltd., 2-11-15, Nakaochiai, Shinjyuku, Tokyo 161-0032, Japan
| | - Masahiko Sakata
- Japan Underwater Films Co., Ltd., 2-11-15, Nakaochiai, Shinjyuku, Tokyo 161-0032, Japan
| | - Taro Hayashi
- EVIDENT CORPORATION, Shinjuku Monolith, 3-1 Nishi-Shinjuku 2-chome, Shinjuku-ku, Tokyo, Japan
| | - Shusei Kanie
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo 062-8517, Japan
| | - Yasuo Mitani
- Bioproduction Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Sapporo 062-8517, Japan
| | | | - Aoi Tsuyuki
- Graduate School of Science, Hokkaido University, Sapporo 060-0810, Japan
| | - Yuzo Ota
- San'in Kaigan Geopark Museum of the Earth and Sea, 1794-4, Makidani, Iwami-town, Tottori 681-0001, Japan
| | - Sau Pinn Woo
- Centre for Marine & Coastal Studies, Universiti Sains Malaysia, 11800 USM Penang, Malaysia
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Jimi N, Fujita T, Woo SP. Four new species of coral- and rock-boring polychaetes Daylithos (Annelida, Flabelligeridae) from the Pacific Ocean. ZOOSYST EVOL 2023. [DOI: 10.3897/zse.99.97944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Four new species of Daylithos (Flabelligeridae, Annelida) are described, based on specimens collected from rocks and corals of Japan and Malaysia. Daylithos, contains one species, D. parmatus, currently reported from Japan. However, the specimens described in previous reports were unable to be located and thus deemed lost. Therefore, it was unclear whether the specimens described as D. parmatus in those studies were, indeed, the species. In Malaysia, D. parmatus has also been known as popular species from corals. The specimens collected from Langkawi (Malaysia) showed clearly different characters from D. parmatus and other congeners. In this study, we describe four new species, Daylithos japonicus, D. amamiensis, D. sugashimaensis and D. langkawiensis, based on newly-collected specimens from several part of Japan and Malaysia. These new species can be discriminated from other congeners by body colour, presence of eyes, shape of dorsal shield, length of caruncle and arrangement of neurochaetae. We have also provided mitochondrial cytochrome c oxidase subunit I sequences of the new species.
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Jimi N, Tsuchida S, Watanabe HK, Ohara Y, Yokooka H, Woo SP, Fujiwara Y. Worm on worm: Two rare genera of Calamyzinae (Annelida, Chrysopetalidae), with a description of new species. Parasitol Int 2022; 90:102619. [PMID: 35777655 DOI: 10.1016/j.parint.2022.102619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/14/2022] [Accepted: 06/24/2022] [Indexed: 11/28/2022]
Abstract
Marine annelids in the subfamily Calamyzinae (family Chrysopetalidae) are either symbiotic or free-living forms that have been mainly reported from deep-sea chemosynthetic environments. Symbiotic calamyzines predominantly live in the mantle cavity of bivalves distributing at hydrothermal vents or methane seeps except for two species inhabiting the epidermis of polychaetes and octopuses. In this study, we describe a new species, Calamyzas crambon sp. nov., from Japan and report a new record of Nautiliniella calyptogenicola from the Mariana Trench. We also provide the phylogenetic position of the two species within Chrysopetalidae based on four gene markers (COI, 16S, 18S, and H3).
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Affiliation(s)
- Naoto Jimi
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, Mie 517-0004, Japan; Centre for Marine & Coastal Studies, Universiti Sains Malaysia 11800 USM, Penang, Malaysia.
| | - Shinji Tsuchida
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa 237-0061, Japan
| | - Hiromi Kayama Watanabe
- X-STAR, Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa 237-0061, Japan
| | - Yasuhiko Ohara
- Research Institute for Marine Geodynamics (IMG), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa 237-0061, Japan; Hydrographic and Oceanographic Department of Japan, 3-1-1 Kasumigaseki, Chiyoda, Tokyo 100-8932, Japan; Department of Earth and Planetary Sciences, Nagoya University, Furocho, Chikusa, Nagoya 464-8601, Japan
| | - Hiroyuki Yokooka
- Institute of Environmental Ecology, IDEA Consultants, Inc., Yaizu, Shizuoka 421-0212, Japan
| | - Sau Pinn Woo
- Centre for Marine & Coastal Studies, Universiti Sains Malaysia 11800 USM, Penang, Malaysia
| | - Yoshihiro Fujiwara
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Kanagawa 237-0061, Japan
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Yoshikawa A, Izumi T, Moritaki T, Kimura T, Yanagi K. Carcinoecium-Forming Sea Anemone Stylobates calcifer sp. nov. (Cnidaria, Actiniaria, Actiniidae) from the Japanese Deep-Sea Floor: A Taxonomical Description with Its Ecological Observations. THE BIOLOGICAL BULLETIN 2022; 242:127-152. [PMID: 35580031 DOI: 10.1086/719160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Here we describe Stylobates calcifer sp. nov. (Cnidaria, Actiniaria, Actiniidae), a new carcinoecium-forming sea anemone from the deep-sea floor of Japan. Stylobates produces a carcinoecium that thinly covers the snail shells inhabited by host hermit crabs Pagurodofleinia doederleini. The new species is distinct from other species by the shape of the marginal sphincter muscle, the distribution of cnidae, the direction of the oral disk, and host association. The species' novelty is supported by the data of its mitochondrial genes 12S, 16S, and COIII and nuclear genes 18S and 28S. Also, we conducted behavioral observation of this new species, focusing on the feeding behavior and interaction with the specific host hermit crab. Our observations suggest that this sea anemone potentially feeds on the suspended particulate organic matter from the water column or the food residuals of hermit crabs. When the host's shell changed, intensive manipulation for transference of S. calcifer sp. nov. was recorded. However, although the hermit crab detached and transferred the sea anemone to the new shell after shell change, the sea anemone did not exhibit active or cooperative participation. Our data suggest that the sea anemone may not produce a carcinoecium synchronously to its host's growth, contrary to the anecdotal assumption about carcinoecium-forming sea anemones. Conversely, the host hermit crab's growth may not depend entirely on the carcinoecium produced by the sea anemone. This study is perhaps the first observation of the behavioral interaction of the rarely studied carcinoecium-forming mutualism in the deep sea.
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Jimi N, Fujimoto S, Fujiwara Y, Oguchi K, Miura T. Four new species of Ctenodrilus, Raphidrilus, and Raricirrus (Cirratuliformia, Annelida) in Japanese waters, with notes on their phylogenetic position. PeerJ 2022; 10:e13044. [PMID: 35282276 PMCID: PMC8916031 DOI: 10.7717/peerj.13044] [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: 07/29/2021] [Accepted: 02/10/2022] [Indexed: 01/11/2023] Open
Abstract
Four new species of annelids, Ctenodrilus japonicus sp. nov., Raphidrilus misakiensis sp. nov., Raphidrilus okinawaensis sp. nov., and Raricirrus anubis sp. nov., are described based on specimens collected from Japanese waters. Ctenodrilus japonicus sp. nov. inhabits the interstitial environment and can be distinguished from the other congeners by the following features: (i) total of 16 chaetigers, (ii) chaetigers 1-3 with stout hooks, (iii) minute body (approximately 1 mm in length), (iv) all parapodia with the same number of chaetae (two notochaetae; two neurochaetae), and (v) presence of dorsal and ventral papillae. Raphidrilus misakiensis sp. nov. lives under intertidal stones and can be distinguished from other congeners by having pectinate neurochaetae. Raphidrilus okinawaensis sp. nov. inhabits the interstitial environment and can be distinguished from other congeners by: (i) absence of annulation on the peristomium and achaetous segment and (ii) presence of a heart body in chaetigers 4-5. Raricirrus anubis sp. nov. inhabits whale bones and can be distinguished from other congeners by the following features: (i) presence of a heart body in chaetigers 9-14, (ii) presence of capillary neurochaetae on chaetiger 1, and (iii) presence of simple curved spines. A phylogenetic tree based on partial sequences of cytochrome c oxidase subunit I and 16S rRNA from the new species and other cirratulid worms showed that Raphidrilus is included in Cirratuliformia. This is the first record of Raphidrilus and Raricirrus from Japanese waters.
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Affiliation(s)
- Naoto Jimi
- Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, Japan,Centre for Marine & Coastal Studies, Universiti Sains Malaysia, Penang, Malaysia
| | - Shinta Fujimoto
- Research Center for Marine Biology, Graduate School of Life Sciences, Tohoku University, Aomori, Japan
| | - Yoshihiro Fujiwara
- Research Institute for Global Change (RIGC), Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka, Japan
| | - Kohei Oguchi
- National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan,Misaki Marine Biological Station, School of Science, The University of Tokyo, Miura, Japan
| | - Toru Miura
- Misaki Marine Biological Station, School of Science, The University of Tokyo, Miura, Japan
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