Sphenomorphus indicus and S. incognitus both occur in Hong Kong. They are very similar in appearance that S. incognitus collected in the past had been misidentified as S. indicus. There is only one clear-cut difference between the two species which is the presence of a patch of enlarged scales at the back of the thigh in S. incognitus. It seems that there is some different in habitat preference while S. incognitus prefers waterside but S. indicus is often encountered along forest paths.S. indicus is distributed widely in South-east Asia including S. China, Bhutan, Taiwan, Thailand, Vietnam, India and west Malaysia.
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