Hartweg & Oliver, 1938 : A contribution to the herpetology of the isthmus of Tehuantepec. III. Three new snakes from the Pacific slope. Occasional Papers of the Museum of Zoology, University of Michigan, n. 390, p. 1-8 (texte intégral).
↑Hartweg & Oliver, 1938 : A contribution to the herpetology of the isthmus of Tehuantepec. III. Three new snakes from the Pacific slope. Occasional Papers of the Museum of Zoology, University of Michigan, n. 390, p. 1-8.