The seventh species of the newt genus Tylototriton in Thailand: a new species (Urodela, Salamandridae) from Tak Province, northwestern Thailand
Issued Date
2024-01-01
Resource Type
ISSN
13132989
eISSN
13132970
Scopus ID
2-s2.0-85207822310
Journal Title
ZooKeys
Volume
1215
Start Page
185
End Page
208
Rights Holder(s)
SCOPUS
Bibliographic Citation
ZooKeys Vol.1215 (2024) , 185-208
Suggested Citation
Pomchote P., Peerachidacho P., Khonsue W., Sapewisut P., Hernandez A., Phalaraksh C., Siriput P., Nishikawa K. The seventh species of the newt genus Tylototriton in Thailand: a new species (Urodela, Salamandridae) from Tak Province, northwestern Thailand. ZooKeys Vol.1215 (2024) , 185-208. 208. doi:10.3897/zookeys.1215.116624 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/101920
Title
The seventh species of the newt genus Tylototriton in Thailand: a new species (Urodela, Salamandridae) from Tak Province, northwestern Thailand
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
A new species of the crocodile newt genus Tylototriton from Doi Soi Malai located at Mae Tuen Wildlife Sanctuary, Tak Province, northwestern Thailand is described based on molecular and morphological evidence, and named as Tylototriton soimalai sp. nov. The new species is the seventh recorded species of the genus Tylototriton reported in Thailand. It differs morphologically from its congeners by a combination of the following morphological characteristics: head longer than wide; snout blunt or truncate; sagittal ridge on head narrow, short and distinct; dorsolateral bony ridges on head pronounced and rough; parotoids distinct; vertebral ridge prominent, wide and not segmented; 14–16 distinct, rounded and isolated rib nodules but posterior nodules connected; tips of fore-and hind limbs overlapping when adpressed along the body. The body background color is black, while the color markings are orange. Molecular analysis indicated that Tylototriton soimalai sp. nov. is a distinct lineage and sister to T. uyenoi with a 4.1% genetic sequence divergence based on the mitochondrial NADH dehydrogenase subunit 2 gene. The new species is currently restricted to the hill evergreen forests of Doi Soi Malai. The implementation of a strategic plan is recommended to protect both the species and its habitat from anthropogenic activities.