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.