freshwater mollusc Helisoma corpulentum and its relatives in Canada
By: by F. C. Baker.
Series: Canada. National museum, Ottawa. Bulletin 79. Biological series no. 21; Bulletin (National Museum of Canada) -- no. 79.
Publisher: J. C. Patenaude, printer
Published: 1936
Place of publication: Ottawa
Language: eng
Number of pages: 37
Subjects: Mollusks -- Canada.; Helisoma corpulentum.
Notes: At head of title: Canada. Department of mines.

"Contribution from the Museum of natural history, University of Illinois, no. 75."

"Identification of Corpulentum references in the literature": p. 23-27.