Description: English: Olive Keelback water snake (Atretium schistosum) from Sri Lanka. Date: 13 April 2016. Source: Taken at sandy soil near a stream. Author:
Gihan Jayaweera. Other information English: Olive Keelback water snake (Atretium schistosum) from Bakamuna, Sri Lanka
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File:Atretium schistosum.jpg.
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