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Type: Journal article
Title: Further specimens of the mud snake, Gerarda prevostiana (Homalopsidae) from Sri Lanka with insights from molecular phylogenetics
Author: Ukuwela, K.
De Silva, A.
Sanders, K.
Citation: Raffles Bulletin of Zoology, 2017; 65:29-34
Publisher: National University of Singapore, School of Biological Sciences
Issue Date: 2017
ISSN: 0217-2445
Statement of
Kanishka D.B. Ukuwela, Anslem de Silva, Kate L. Sanders
Abstract: Gerarda prevostiana is an aquatic homalopsid snake distributed in the coastal brackish water habitats from Northwestern India, through peninsular Malaysia to the Philippines. In Sri Lanka, it appears to be a rare species known only from a few specimens. During a survey on the marine snake fauna of Sri Lanka, the authors found two specimens of Gerarda prevostiana as by-catch of fisheries from a coastal region in Northwestern Sri Lanka. Comparison of morphological data of the two individuals with available literature suggested little variation with their extralimital counterparts. However, moderate mitochondrial sequence divergence (similar to 3%) between specimens from Sri Lanka and Singapore suggest a history of isolation between South Asian and Southeast Asian populations.
Keywords: By-catch; Cytochrome b; genetic divergence; phylogeny; rear-fanged snakes; systematics
Rights: © National University of Singapore
RMID: 0030080158
Appears in Collections:Ecology, Evolution and Landscape Science publications

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