Condylostomaan Enemy of Bivalve Larvae
V. L. LOOSANOFF 1
1 U.S. Fish and Wildlife Service, Marine Biological Laboratory, Milford, Connecticut
In laboratory cultures, where larvae of such bivalves as oysters and clams were kept together with large ciliates of the family Condylostomidae, the latter were seen ingesting the larvae. A single Condylostoma could contain as many as six larvae. Related species may destroy many bivalve larvae in nature.