Lea, I. (1861). Descriptions of new species of Schizostoma, Anculosa and Lithasia. Proceedings of the Academy of Natural Sciences of Philadelphia. 13: 54-55 [19 March 1861].
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Lea, I.
1861
Descriptions of new species of <i>Schizostoma</i>,<i> Anculosa</i> and <i>Lithasia</i>.
Proceedings of the Academy of Natural Sciences of Philadelphia