A new natricine snake of the genus Thamnophis from Northern Mexico
By: by Douglas A. Rossman.
Series: Occasional papers of the Museum of Zoology ;; no. 39
Publisher: Louisiana State University
Published: 1969
Place of publication: Baton Rouge
Language: eng
Subjects: Thamnophis exsul.; Snakes -- Mexico, North.
Notes: Bibliography: p. 4.
Caption title.