Template:Markezich & Dixon, 1979

• Markezich, A.L. & Dixon, J.R. 1979. A New South American Species of Snake and Comments on the Genus Umbrivaga. Copeia 1979(4): 698–701. DOI: 10.2307/1443879  
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Nomenclatural acts

• Date of publication: 28 November 1979

New names (1)

• Umbrivaga pyburni [p. 698]