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Two new species of pitviper of the genus Cryptelytrops Cope 1860 (Squamata:

By Viperidae Crotalinae, Southeast Asia, Anita Malhotra, Roger S. Thorpe and Bryan L. Stuart

Abstract

We describe two new species of green pitviper from Southeast Asia that are morphologically similar to Cryptelytrops macrops, but can be distinguished from that species by genetic means, multivariate analysis of morphology and some aspects of coloration. Cryptelytrops cardamomensis sp. nov., is described from southeastern Thailand and the Cardamom Mountains of southwestern Cambodia. Cryptelytrops rubeus sp. nov. has been recorded from southern Vietnam and eastern Cambodia. These species have previously been confused with C. macrops, hence we also present here a redescription of this species, whose range is now restricted to Thailand, southern and central Laos, and northeastern Cambodia. All three species are present in Cambodia, but have disjunct ranges corresponding to three separate highland regions in southwestern (Cardamom Mountains), northeastern (western edge of the Kontum Plateau) and eastern (low elevation hills on the western edge of the Langbian Plateau) Cambodia for C. cardamomensis, C. macrops and C. rubeus respectively. However, there is still considerable morphological variation between geographically separated populations of C. macrops s.s., and greater sampling in southern and northern Thailand in particular may be required before the species diversity of this group is fully clarified. Key words: Cryptelytrops cardamomensis sp. nov., Cryptelytrops macrops, Cryptelytrops rubeus sp. nov., green pitviper, multivariate morphometric analysis, Trimeresuru

Year: 2013
OAI identifier: oai:CiteSeerX.psu:10.1.1.353.1112
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