Question

which larva of mollusca is an ectoparasitic of fishes?

Answer 1

The glochidium (plural glochidia) is a microscopic larval stage of some freshwater mussels, aquatic bivalve mollusks in the families Unionidae and Margaritiferidae, the river mussels and European freshwater pearl mussels.

Answer 2

The glochidium (plural glochidia) is a microscopic larval stage of some freshwater mussels, aquatic bivalvemollusks in the families Unionidae and Margaritiferidae, the river mussels and European freshwater pearl mussels - hope it helps you buddy