Hyman, L. H. (1938). North American Rhabdocoela and Alloeocoela. III. Mesostoma arctica, n. sp., from northern Canada. American Museum Novitates. 1005: 1–8.
236629
Hyman, L. H.
1938
North American Rhabdocoela and Alloeocoela. III. Mesostoma arctica, n. sp., from northern Canada.