Zoological Research ›› 2019, Vol. 40 ›› Issue (3): 151-174.doi: 10.24272/j.issn.2095-8137.2019.043

Special Issue: Amphibians & reptiles Genetics & evolution

• Articles • Previous Articles     Next Articles

A new species of Crocodile Newt, genus Tylototriton (Amphibia, Caudata, Salamandridae) from the mountains of Kachin State, northern Myanmar

Than Zaw1,Paw Lay2,Parinya Pawangkhanant3,JVladislav A. Gorin4,Nikolay A. Poyarkov, Jr.4,5()   

  1. 1.Zoology Department, Mohnyin Degree College, Mohnyin, Kachin State, Myanmar
    1.Zoology Department, Mohnyin Degree College, Mohnyin, Kachin State, Myanmar
    2.Flora and Fauna International, Lon Ton Village, Indawgyi, Kachin State, Myanmar
    2. Flora and Fauna International, Lon Ton Village, Indawgyi, Kachin State, Myanmar
    3.IBansomdejchaopraya Rajabhat University, Hiran Ruchi, Thon Buri, Bangkok 10600, Thailand
    3. IBansomdejchaopraya Rajabhat University, Hiran Ruchi, Thon Buri, Bangkok 10600, Thailand
    4.Department of Vertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119234, Russia
    4. Department of Vertebrate Zoology, Biological Faculty, Lomonosov Moscow State University, Moscow 119234, Russia
    5.Joint Russian-Vietnamese Tropical Research and Technological Center, Nghia Do, Cau Giay, Hanoi, Vietnam
    5. Joint Russian-Vietnamese Tropical Research and Technological Center, Nghia Do, Cau Giay, Hanoi, Vietnam
  • Received:2018-10-30 Accepted:2019-02-21 Online:2019-05-18 Published:2019-04-19
  • Contact: Nikolay A. Poyarkov, Jr. E-mail:n.poyarkov@gmail.com
  • Supported by:
    The study was partially supported by the Russian Science Foundation(19-14-00050)

Abstract:

We describe a new species of the genus Tylototriton from Ingyin Taung Mt., Mohnyin Township, Kachin State, Myanmar, based on morphological and molecular evidence. The new species is assigned to the subgenus Tylototriton s. str. and is clearly distinct from all known congeners by the following characters: medium body size; thin, long tail, lacking lateral grooves; rough skin; truncate snout; wide, protruding supratemporal bony ridges on head, beginning at anterior corner of orbit; weak, almost indistinct sagittal ridge; long, thin limbs, broadly overlapping when adpressed along body; distinct, wide, non-segmented vertebral ridge; 13 or 14 rib nodules; brown to dark-brown background coloration with dull orange-brown to yellowish-brown markings on labial regions, parotoids, rib nodules, whole limbs, vent, and ventral tail ridge. We also briefly discuss biogeography and species diversity of the genus Tylototriton in Myanmar.

Key words: Tylototriton kachinorum sp. nov., mtDNA genealogy, ND2, 16S rRNA, Shan, Biogeography, Endemism, Taxonomy