Southbound - the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species.

Autor:	Phung TM; Dong Khoi 9A, Tam Hiep, Bien Hoa, Dong Nai Province, Vietnam Unaffiliated Bien Hoa Vietnam., Pham CT; Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology Hanoi Vietnam.; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 10072, Vietnam Graduate University of Science and Technology Hanoi Vietnam., Nguyen TQ; Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology Hanoi Vietnam.; Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi 10072, Vietnam Graduate University of Science and Technology Hanoi Vietnam., Ninh HT; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam Institute of Genome Research, Vietnam Academy of Science and Technology Hanoi Vietnam., Nguyen HQ; Vietnam National Museum of Nature, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam Vietnam National Museum of Nature, Vietnam Academy of Science and Technology Hanoi Vietnam., Bernardes M; Cologne Zoo, Riehler Str. 173, D-50735 Cologne, Germany Cologne Zoo Cologne Germany.; Institute of Zoology, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany University of Cologne Cologne Germany., Le ST; National Institute of Medicinal Materials, 43 Đinh Tien Hoang, Ben Nghe, Ho Chi Minh city, Vietnam National Institute of Medicinal Materials Ho Chi Minh City Vietnam., Ziegler T; Cologne Zoo, Riehler Str. 173, D-50735 Cologne, Germany Cologne Zoo Cologne Germany.; Institute of Zoology, University of Cologne, Zülpicher Str. 47b, D-50674 Cologne, Germany University of Cologne Cologne Germany., Nguyen TT; Institute of Genome Research, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Hanoi 10072, Vietnam Institute of Genome Research, Vietnam Academy of Science and Technology Hanoi Vietnam.
Jazyk:	angličtina
Zdroj:	ZooKeys [Zookeys] 2023 Jul 03; Vol. 1168, pp. 193-218. Date of Electronic Publication: 2023 Jul 03 (Print Publication: 2023).
DOI:	10.3897/zookeys.1168.96091
Abstrakt:	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. Tylototritonngoclinhensis sp. nov. differs from all other congeners based on morphological data, allopatric distribution, and molecular divergence. In terms of genetic divergence, Tylototritonngoclinhensis sp. 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. Tylototritonngoclinhensis sp. 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. Tylototritonngoclinhensis sp. 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. Competing Interests: The authors have declared that no competing interests exist. (Trung My Phung, Cuong The Pham, Truong Quang Nguyen, Hoa Thi Ninh, Huy Quoc Nguyen, Marta Bernardes, Son Thanh Le, Thomas Ziegler, Tao Thien Nguyen.)
Databáze:	MEDLINE
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