Widely distributted in the coastal floodplain of western Sri Lanka, usually occurring among weeds in shallow ponds, rice paddies and wetlands of Attidiya, Colombo,

Gampaha, Dombagaskanda, Veyangoda (Western Province), Wakwella, Baddegama, Ma Dola (Southern Province), Mundel and Puttalam (North-Western Province) (Ref. 94541). Habitats in Muthurajawela swamp are heavily fished for small shrimps (kuni) which are sun dried and sold. This species forms a noticeable proportion of the kuni. Also Ref. 4832, 41236, 43640.