Species of crocodile newt
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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. First discovered in 2018, it was described as a new species in 2023. 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.
Distribution.
"Tylototriton ngoclinhensis" is the eighth taxon of "Tylototriton" to be described in Vietnam, but the first to be recorded in its Central Highlands region. The range of "T. ngoclinhensis" is limited and is currently thought to be restricted to montane forests near water bodies on Ngọc Linh. This means that "T. ngoclinhensis" has the southernmost range of all members of "Tylototriton" in Asia. 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.
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. Tail lengths range from 57.6 to 61.8 mm in males and 62.9–67.9 mm in females. 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. In addition, a black line is present which runs from the shoulder to the eye. Secondary sex characteristics are present in the species. The cloaca of males are known to have a longer slit than those of females. In addition, the inner cloacal walls of males contain papilla, whereas females do not have papilla inside their inner cloacal walls.
References.
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