Ball, I. R. (1975). Contributions to a revision of the marine triclads of North America: the monotypic genera Nexilis, Nesion, and Foviella (Turbellaria: Tricladida). Can. J. Zool. 53(4): 395-407.
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Ball, I. R.
1975
Contributions to a revision of the marine triclads of North America: the monotypic genera <i>Nexilis</i>, <i>Nesion</i>, and <i>Foviella</i> (Turbellaria: Tricladida)