Wikipedia
Potamides
Potamides is a genus of sea snails, marine gastropod mollusks in the family Potamididae.
Potamides (mythology)
Potamides , (Greek: Ποταμίδες), were a type of water nymphs of Greco-Roman mythology. They were assigned as a class of nymphs of fresh water known as naiads, and as such belonged to a category that presided over rivers and streams.