Nemertodermatidae is a family of wormlike animals in the phylum Acoelomorpha. They are similar to the flatworms of the phylum Platyhelminthes, and were traditionally classified as such. These are hermaphroditic marine worms with ciliated bodies containing a "sack-like gut". There are four genera: \n* Meara \n* Meara stichopi Westblad 1949 \n* Nemertinoides \n* Nemertinoides elongatus Riser 1987 \n* Nemertoderma \n* Nemertoderma bathycola Steinböck 1930 \n* Nemertoderma westbladi (Westblad) Steinbock, 1938 \n* Sterreria \n* Sterreria psammicola (Sterrer 1970)