Literature
- Ball, I. R. 1975a. Contributions to a revision of the marine triclads of North America: the monotypic genera Nexilis, Nesion, and Foviella (Turbellaria: Tricladida). Can. J. Zool. 53: 395-407.
- Holleman, J. J. 1972. Marine Turbellarians of the Pacific coast 1. Proc. Biol. Soc. Wash. 85: 405-412.
- Holleman, J. J. and C. Hand 1962. A new species, genus and family of marine flatworms (Turbellaria: Tricladida Maricola) commensal with mollusks. Veliger 5: 20-22.