Microphallus nicolli

Microphallus nicolli is a species of digenean parasite in the genus "Microphallus". Recorded hosts include the marsh rice rat ("Oryzomys palustris") in a saltmarsh at Cedar Key, Florida, where the crab "Eurytium limosum" is an intermediate host, and the sea otter ("Enhydra lutris") in central California. It was previously known as "Spelotrema nicolli".