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Phung TM, Pham CT, Nguyen TQ, Ninh HT, Nguyen HQ, Bernardes M, Le ST, Ziegler T, Nguyen TT. Southbound - the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species. Zookeys 2023; 1168:193-218. [PMID: 38328626 PMCID: PMC10848839 DOI: 10.3897/zookeys.1168.96091] [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: 10/07/2022] [Accepted: 05/29/2023] [Indexed: 02/09/2024] Open
Abstract
A new species of the genus Tylototriton is described from Ngoc Linh Mountain, Kon Tum Province, in the Central Highlands of Vietnam based on integrative taxonomy, namely by combining molecular and morphological evidence. Tylototritonngoclinhensissp. nov. differs from all other congeners based on morphological data, allopatric distribution, and molecular divergence. In terms of genetic divergence, Tylototritonngoclinhensissp. nov. distinctly differs from the sister species T.panhai (6.77%) and from T.ngarsuensis (12.36%) based on the mitochondrial NADH dehydrogenase subunit 2 (ND2) gene. Tylototritonngoclinhensissp. nov. is a moderate sized and robust salamander species with large cephalic edges, parotoids, and vertebral ridge orange in coloration. The new taxon differs from its congeners by a combination of the following morphological characteristics: size medium (SVL 60.8-66.5 mm, TL 57.6-61.8 mm in males, and SVL 72.5-75.6 mm, TL 62.9-67.9 mm in females); head longer than wide; parotoids very prominent and enlarged, projecting backwards; tail length shorter than snout-vent length; vertebral ridge large, high and glandular in appearance; 14 large and distinct dorsolateral glandular warts; gular fold present; tips of fore and hind limbs overlapping when adpressed along the body; tips of fingers reaching between eye and nostril when foreleg is laid forward; dorsal surface and lateral sides of the head, upper and lower lips, dorsolateral glandular warts, vertebral ridge, the peripheral area of the cloaca and the ventral edge of the tail orange in coloration; the presence of a distinct black line extending from the posterior end of the eye towards the shoulder. Tylototritonngoclinhensissp. nov. is restricted to evergreen montane forests near water bodies on Ngoc Linh Mountain. We suggest that the new species should be classified as Endangered (EN) in the IUCN Red List. This new important discovery represents the eighth Tylototriton taxon described from Vietnam, and at the same time constitutes the southernmost distributional record for the whole genus in Asia.
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Affiliation(s)
- Trung My Phung
- Dong Khoi 9A, Tam Hiep, Bien Hoa, Dong Nai Province, VietnamUnaffiliatedBien HoaVietnam
| | - Cuong The Pham
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 10072, VietnamGraduate University of Science and TechnologyHanoiVietnam
| | - Truong Quang Nguyen
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 10072, VietnamGraduate University of Science and TechnologyHanoiVietnam
| | - Hoa Thi Ninh
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, VietnamInstitute of Genome Research, Vietnam Academy of Science and TechnologyHanoiVietnam
| | - Huy Quoc Nguyen
- Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, VietnamVietnam National Museum of Nature, Vietnam Academy of Science and TechnologyHanoiVietnam
| | - Marta Bernardes
- Cologne Zoo, Riehler Str. 173, D–50735 Cologne, GermanyCologne ZooCologneGermany
- Institute of Zoology, University of Cologne, Zülpicher Str. 47b, D–50674 Cologne, GermanyUniversity of CologneCologneGermany
| | - Son Thanh Le
- National Institute of Medicinal Materials, 43 Đinh Tien Hoang, Ben Nghe, Ho Chi Minh city, VietnamNational Institute of Medicinal MaterialsHo Chi Minh CityVietnam
| | - Thomas Ziegler
- Cologne Zoo, Riehler Str. 173, D–50735 Cologne, GermanyCologne ZooCologneGermany
- Institute of Zoology, University of Cologne, Zülpicher Str. 47b, D–50674 Cologne, GermanyUniversity of CologneCologneGermany
| | - Tao Thien Nguyen
- Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, VietnamInstitute of Genome Research, Vietnam Academy of Science and TechnologyHanoiVietnam
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Pham CT, Hoang CV, Phan TQ, Nguyen TQ, Ziegler T. Hidden in the jungle of Vietnam: a new species of Quasipaa (Amphibia, Anura, Dicroglossidae) from Ngoc Linh Mountain. Zookeys 2022; 1124:23-42. [PMID: 36762362 PMCID: PMC9836650 DOI: 10.3897/zookeys.1124.89282] [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: 06/20/2022] [Accepted: 09/22/2022] [Indexed: 11/12/2022] Open
Abstract
A new species of Quasipaa is described from Ngoc Linh Mountain of the Kon Tum Massif in central Vietnam. The new species is morphologically distinguishable from its congeners on the basis of a combination of the following diagnostic characters: SVL 79.6-84.3 mm in males and 64.6-69.9 mm in females; head broader than long; vomerine teeth present; external vocal sacs absent; tympanum slightly visible; dorsum with lines of thick ridges and small round tubercles; flanks covered by oval and round tubercles; supratympanic fold present; dorsolateral fold absent; ventrolateral sides, ventral surface of arms, and all fingers with spines in males; the absence of spines on chest and belly in males; toes fully webbed to distal portion of terminal phalanx; in life, dorsum dark brown, chest and belly immaculate white. Phylogenetic analyses found that the genetic divergence of the new species and its congeners ranged from 4.2-5.1% (compared with Quasipaaboulengeri) to 7.6-8.1% (compared with Q.shini) in the 16S gene.
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Affiliation(s)
- Cuong The Pham
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamGraduate University of Science and TechnologyHanoiVietnam
| | - Chung Van Hoang
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam,Forest Resources and Environment Center, 300 Ngoc Hoi Road, Thanh Tri, 10000 Hanoi, VietnamForest Resources and Environment CenterHanoiVietnam
| | - Tien Quang Phan
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam
| | - Truong Quang Nguyen
- Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamInstitute of Ecology and Biological Resources, Vietnam Academy of Science and TechnologyHanoiVietnam,Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, 10072 Hanoi, VietnamGraduate University of Science and TechnologyHanoiVietnam
| | - Thomas Ziegler
- AG Zoologischer Garten Köln, Riehler Strasse 173, D-50735 Cologne, GermanyAG Zoologischer Garten KölnCologneGermany,Institute of Zoology, University of Cologne, Zülpicher Strasse 47b, D-50674 Cologne, GermanyUniversity of CologneCologneGermany
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