The freshwater species were all taken at Colombo, but of the exact localities no record has been forwarded to me. ... [details]
There are two forms of this species:-one, from which the description has been drawn up, tumid and rounded in its ... [details]
Shell, seen laterally, subquadrate, twice as long as broad, greatest height situated near the front; anterior ... [details]
Length of an inch 77 millim. (Brady, 1886) [details]
Colomboo Museum. (Brady, 1886) [details]