The relationship of the groundsnakes Sonora semiannulata and S. episcopa (Serpentes:Colubridae)
By: by Darrel R. Frost and Thomas R. Van Devender.
Contributors: Van Devender, Thomas R., joint author.
Series: Occasional papers of the Museum of Zoology ;; no. 52
Publisher: Louisiana State University
Published: 1979
Place of publication: Baton Rouge
Language: eng
Subjects: Sonora (Genus) -- Classification.; Sonora semiannulata -- Classification.; Reptiles -- Classification.; Reptiles -- Chihuahuan Desert -- Classification.
Notes: Bibliography: p. 8-9.
Caption title.