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Article
Published: 2020-09-18

A new species of Cnemaspis Strauch (Squamata: Gekkonidae) of the C. siamensis group from Tenasserim Mountains, Thailand

Herpetology Laboratory, Department of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, California 92515, USA.
Faculty of Biology, Department of Vertebrate Zoology, Moscow State University, Moscow, Russia.
Division of Fishery, School of Agriculture and Natural Resources, University of Phayao, Phayao, Thailand
Zoological Museum, Moscow State University, B. Nikitskaya ul. 2, Moscow 125009, Russi
Rabbit in the Moon Foundation, Suan Phueng, Ratchaburi, Thailand.
Division of Fishery, School of Agriculture and Natural Resources, University of Phayao, Phayao, Thailand
Faculty of Biology, Department of Vertebrate Zoology, Moscow State University, Moscow, Russia. Laboratory of Tropical Ecology, Joint Russian-Vietnamese Tropical Research and Technological Center, Hanoi, Vietnam.
Reptilia Integrative taxonomy Thailand biogeography taxonomy Isthmus of Kra Ratchaburi Province

Abstract

An integrative taxonomic analysis recovered the new species Cnemaspis selenolagus sp. nov. of the C. siamensis group as the sister species to C. punctatonuchalis. The new species was discovered in mountain evergreen tropical forests of in Suan Phueng District of Ratchaburi Province, western Thailand. Additionally, the analysis recovered a deep genetic divergence between northern and southern clades within the C. siamensis group that occur on opposite sides of the Isthmus of Kra—a well-known biogeographic region of cladogenic turnover. The description of C. selenolagus sp. nov. brings the total number of species of Cnemaspis in Thailand to 16, 11 of which compose the C. siamensis group—a lineage endemic to the Thai-Malay Peninsula. This underscores the physiographic complexity of this narrow peninsula in that it can support a large number of closely related species in only the northern two-thirds of its length.

 

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