Clithon dispar (Pease, 1867)
Distribution:
From the Solomon Islands, through Samoa, and the Cook Islands, to Tahiti and French Polynesia. Specimens examined were from American Samoa; Moorea, French Polynesia; and Tahiti.
Habitat:
Freshwater streams, on and under stones, close to the sea. Probably not found upstream of a point influenced by high tide or wave action.