Turbellarian taxonomic database

author date   title journal / publication
Hyman LH 1939 index card avail.
 
North American Rhabdocoela and Alloeocoela. IV. Mesostoma macropenis, new species, from Douglas lake, Michigen. Amer Midland Naturalist 21:646-650
Mesostoma macropenis Hyman, 1939 w primary taxonomic authority (describer)