A contribution to the knowledge of variation in Opheodrys vernalis (Harlan)
Subtitle: with the description of a new subspecies
By: by Arnold B. Grobman
Series: Miscellaneous publications, Museum of Zoology, University of Michigan -- no. 50; Miscellaneous publications (University of Michigan. Museum of Zoology) -- no. 50
Publisher: University of Michigan press
Published: 1941
Place of publication: Ann Arbor
Language: eng
Number of pages: 38
Subjects: Opheodrys vernalis
Notes: "Literature cited":  p. 33-37.