Template:Hartweg, 1959

• Hartweg, N.E. 1959. A new colubrid snake of the genus Geophis from Michoacán. Occasional papers of the Museum of Zoology, University of Michigan 601: 1–5. hdl: 2027.42/57038  
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Nomenclatural acts

• Date of publication: 4 May 1959

New names (1)

• Geophis tarascae [p. 1]