A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand

We describe a new species of the newt genus Tylototriton from Umphang Wildlife Sanctuary, Tak Province, western Thailand based on molecular and morphological evidence and named here as Tylototriton umphangensis sp. nov. The new species is assigned to the subgenus Tylototriton and differs from other...

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Autores principales:	Porrawee Pomchote, Parada Peerachidacho, Axel Hernandez, Pitak Sapewisut, Wichase Khonsue, Panupong Thammachoti, Kanto Nishikawa
Formato:	article
Lenguaje:	EN
Publicado:	Pensoft Publishers 2021
Materias:	Zoology QL1-991
Acceso en línea:	https://doaj.org/article/e2a07dc8b2af434cac654f5cfb39e5e1
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spelling	oai:doaj.org-article:e2a07dc8b2af434cac654f5cfb39e5e12021-11-21T04:30:15ZA new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand10.3897/zookeys.1072.753201313-2970https://doaj.org/article/e2a07dc8b2af434cac654f5cfb39e5e12021-11-01T00:00:00Zhttps://zookeys.pensoft.net/article/75320/download/pdf/https://zookeys.pensoft.net/article/75320/download/xml/https://zookeys.pensoft.net/article/75320/https://doaj.org/toc/1313-2970We describe a new species of the newt genus Tylototriton from Umphang Wildlife Sanctuary, Tak Province, western Thailand based on molecular and morphological evidence and named here as Tylototriton umphangensis sp. nov. The new species is assigned to the subgenus Tylototriton and differs from other species in having dark-brown to blackish-brown body and limbs, truncate snout, prominent antero-medial ends of the expansion of the dentary bones, laterally protruding quadrate regions, indistinct and small rib nodules, a well-segmented vertebral ridge, and rough dorsolateral bony ridges, which are steeper anterior, and curved medially at the posterior ends. The molecular data show that Tylototriton umphangensis sp. nov. differs from T. uyenoi sensu stricto by a 5% genetic sequence divergence of the mitochondrial NADH dehydrogenase subunit 2 region gene. The new species and T. uyenoi are both endemic to Thailand, distributed along the Northwest Thai (Dawna) Uplands of Indochina. To clarify the species boundary between Tylototriton umphangensis sp. nov. and T. uyenoi, additional field research is needed in adjacent areas. Tylototriton umphangensis sp. nov. is restricted to evergreen hill forests in Umphang Wildlife Sanctuary. We suggest that the new species should be classified as Endangered (EN) in the IUCN Red List.Porrawee PomchoteParada PeerachidachoAxel HernandezPitak SapewisutWichase KhonsuePanupong ThammachotiKanto NishikawaPensoft PublishersarticleZoologyQL1-991ENZooKeys, Vol 1072, Iss , Pp 83-105 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Zoology QL1-991
spellingShingle	Zoology QL1-991 Porrawee Pomchote Parada Peerachidacho Axel Hernandez Pitak Sapewisut Wichase Khonsue Panupong Thammachoti Kanto Nishikawa A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
description	We describe a new species of the newt genus Tylototriton from Umphang Wildlife Sanctuary, Tak Province, western Thailand based on molecular and morphological evidence and named here as Tylototriton umphangensis sp. nov. The new species is assigned to the subgenus Tylototriton and differs from other species in having dark-brown to blackish-brown body and limbs, truncate snout, prominent antero-medial ends of the expansion of the dentary bones, laterally protruding quadrate regions, indistinct and small rib nodules, a well-segmented vertebral ridge, and rough dorsolateral bony ridges, which are steeper anterior, and curved medially at the posterior ends. The molecular data show that Tylototriton umphangensis sp. nov. differs from T. uyenoi sensu stricto by a 5% genetic sequence divergence of the mitochondrial NADH dehydrogenase subunit 2 region gene. The new species and T. uyenoi are both endemic to Thailand, distributed along the Northwest Thai (Dawna) Uplands of Indochina. To clarify the species boundary between Tylototriton umphangensis sp. nov. and T. uyenoi, additional field research is needed in adjacent areas. Tylototriton umphangensis sp. nov. is restricted to evergreen hill forests in Umphang Wildlife Sanctuary. We suggest that the new species should be classified as Endangered (EN) in the IUCN Red List.
format	article
author	Porrawee Pomchote Parada Peerachidacho Axel Hernandez Pitak Sapewisut Wichase Khonsue Panupong Thammachoti Kanto Nishikawa
author_facet	Porrawee Pomchote Parada Peerachidacho Axel Hernandez Pitak Sapewisut Wichase Khonsue Panupong Thammachoti Kanto Nishikawa
author_sort	Porrawee Pomchote
title	A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
title_short	A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
title_full	A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
title_fullStr	A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
title_full_unstemmed	A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand
title_sort	new species of the genus tylototriton (urodela, salamandridae) from western thailand
publisher	Pensoft Publishers
publishDate	2021
url	https://doaj.org/article/e2a07dc8b2af434cac654f5cfb39e5e1
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A new species of the genus Tylototriton (Urodela, Salamandridae) from western Thailand

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