Biology:Tylototriton ngoclinhensis
| Ngoc Linh crocodile newt | |
|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Amphibia |
| Order: | Urodela |
| Family: | Salamandridae |
| Genus: | Tylototriton |
| Species: | T. ngoclinhensis
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| Binomial name | |
| Tylototriton ngoclinhensis Phung, Pham, Nguyen, Ninh, Nguyen, Bernardes, Le, Ziegler & Nguyen, 2023
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Tylototriton ngoclinhensis, the Ngoc Linh crocodile newt, is a species of crocodile newt native to the Central Highlands region of Vietnam.[1] First discovered in 2018, it was described as a new species in 2023.[2] Due to its small range, the newt is considered to be threatened and it has been proposed for it to be classified as endangered on the IUCN Red List.[3]
Distribution
Tylototriton ngoclinhensis is the eighth taxon of Tylototriton to be described in Vietnam,[3] but the first to be recorded in its Central Highlands region.[1] The range of T. ngoclinhensis is limited and is currently thought to be restricted to montane forests near water bodies on Ngọc Linh.[3] This means that T. ngoclinhensis has the southernmost range of all members of Tylototriton in Asia.[3] The habitat of T. ngoclinhensis is located at an altitude of 1,800 to 2,300 meters above sea level, the highest among crocodile newts.[4]
Description
Tylototriton ngoclinhensis is a moderate-sized and robust species of newt, with a snout-vent length ranging from 60.8 to 66.5 mm in males and 72.5-75.6 mm in females.[3] Tail lengths range from 57.6 to 61.8 mm in males and 62.9–67.9 mm in females.[3] Males are thought to be smaller than females.
The body of T. ngoclinhensis is black with orange-red markings covering its head, tail, limbs, and vertebral ridge.[5] In addition, a black line is present which runs from the shoulder to the eye.[6] Secondary sex characteristics are present in the species. The cloaca of males are known to have a longer slit than those of females.[3] In addition, the inner cloacal walls of males contain papilla, whereas females do not have papilla inside their inner cloacal walls.[3]
References
- ↑ 1.0 1.1 Anderson, Natali (2023-07-11). "New Crocodile Newt Species Discovered in Vietnam | Sci.News" (in en-US). https://www.sci.news/biology/tylototriton-ngoclinhensis-12083.html.
- ↑ "New crocodile newt discovered in Vietnam". July 17, 2023. https://tuoitrenews.vn/news/society/20230717/new-crocodile-newts-are-discovered-in-vietnam/74436.html.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Phung, Trung My; Pham, Cuong The; Nguyen, Truong Quang; Ninh, Hoa Thi; Nguyen, Huy Quoc; Bernardes, Marta; Le, Son Thanh; Ziegler, Thomas et al. (2023-07-03). "Southbound – the southernmost record of Tylototriton (Amphibia, Caudata, Salamandridae) from the Central Highlands of Vietnam represents a new species". ZooKeys 1168: 193–218. doi:10.3897/zookeys.1168.96091. ISSN 1313-2970. https://zookeys.pensoft.net/article/96091/.
- ↑ Dalton, Nia (2023-07-24). "Extraordinary new crocodile species discovered, but it looks more like an alien" (in en). https://www.mirror.co.uk/news/world-news/scientists-discover-bizarre-new-crocodile-30538246.
- ↑ Mozter, Paw (July 5, 2023). "Southernmost Crocodile Newt Added to the List of Threatened Species". https://www.natureworldnews.com/articles/57257/20230705/southernmost-crocodile-newt-added-list-threatened-species.htm.
- ↑ VnExpress. "New crocodile newt species discovered in Vietnam - VnExpress International" (in en). https://e.vnexpress.net/news/news/environment/new-crocodile-newt-species-discovered-in-vietnam-4625879.html.
Wikidata ☰ Q120920264 entry
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