Tachymenis ocellata, also known commonly as the ocellated pampas snake and la falsa yarará in South American Spanish, is a species of venomous snake in the subfamilyDipsadinae of the familyColubridae. The species is native to eastern-central South America.
Boulenger, G.A. (1896). Catalogue of the Snakes in the British Museum (Natural History). Volume III., Containing the Colubridæ (Opisthoglyphæ and Proteroglyphæ), Amblycephalidæ, and Viperidæ. London: Trustees of the British Museum (Natural History). (Taylor & Francis, printers). xiv + 727 pp. + Plates I–XXVIII. (Tomodon ocellatus, corrected gender of specific name, pp. 121–122).
Duméril, A.-M.-C.; Bibron, G.; Duméril, A.[-H.-A.] (1854). Erpétologie générale ou histoire naturelle complète des reptiles. Tome septième – Deuxième partie. Comprenant l'histoire des serpents venimeux. Paris: Roret. xii + pp. 781–1536. (Tomodon ocellatum, new species, pp. 938–940). (in French).
Gallardo, J.M. (1972). "Observaciones biológicas sobre una falsa yarará, Tomodon ocellatus Duméril, Bibron et Duméril (Reptilia, Ophidia)". Neotropica. 18 (56): 57–63. (in Spanish).
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