Knapp, S. E. (1954). Notes on the occurence of some free-swimming flatworms from Northern Idaho, with the description of a new species of Dalyellia (Order Rhabdocoelida, Class Turbellaria). Northwest Science. 28(3): 98-106.
237501
Knapp, S. E.
1954
Notes on the occurence of some free-swimming flatworms from Northern Idaho, with the description of a new species of Dalyellia (Order Rhabdocoelida, Class Turbellaria).