Atractus acheronius PASSOS, RIVAS-FUENMAYOR & BARRIO-AMORÓS, 2009

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Higher Taxa	Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names
Synonym	Atractus acheronius PASSOS, RIVAS-FUENMAYOR & BARRIO-AMORÓS 2009 Atractus acheronius — WALLACH et al. 2014: 68 Atractus acheronius — PASSOS et al. 2024: 85
Distribution	Venezuela (Sierra de Perijá) Type locality: upper Río Negro Valley (2200-2400 m), Sierra de Perijá, municipality of Machiques de Perijá (09° 52′ N, 72° 48′ W), state of Zulia, Venezuela.
Reproduction	oviparous (not imputed, fide Zimin et al. 2022)
Types	Holotype: MHNLS 398, Adult female
Diagnosis	Diagnosis (short): Atractus acheronius can be distinguished from congeners by having 17 dorsal scale rows, presence of preocular scales, seven upper and lower labials, seven maxillary teeth, 166 ventrals in the single female, 23 subcaudals, dorsum brown with small dark brown dots, large body size, huge body diameter, and small tail size. Additional details (4275 characters) are available for collaborators and contributors. Please contact us for details.
Comment
References	Natera-Mumaw, Marco; Luis Felipe Esqueda-González & Manuel Castelaín-Fernández 2015. Atlas Serpientes de Venezuela. Santiago de Chile, Dimacofi Negocios Avanzados S.A., 456 pp. - get paper here Passos, P., Meneses-Pelayo, E., Ramos, L. O., Martins, A. R., Machado, A., Lopes, R. T., ... & Lynch, J. D. 2024. Taxonomy without borders: Revision of the genus Atractus (Serpentes: Dipsadidae) from the Andes between Colombia and Venezuela. South American Journal of Herpetology, 32(sp1), 1-123 - get paper here Passos, Paulo; Rivas Fuenmayor, Gilson; Barrio-Amorós, Cesar 2009. Description of two new species from Venezuela in the highly diverse dipsadine genus Atractus (Serpentes: Colubridae). Amphibia-Reptilia 30 (2): 233-243 - get paper here RIVAS, GILSON A.; CÉSAR R. MOLINA, GABRIEL N. UGUETO, TITO R. BARROS, CÉSAR L. BAR- RIO-AMORÓS & PHILIPPE J. R. KOK 2012. Reptiles of Venezuela: an updated and commented checklist. Zootaxa 3211: 1–64 - get paper here Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp. Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
External links	IUCN Red List http://www.ingentaconnect.com/content/brill/amre/2009/00000030/00000002… https://www.facebook.com/groups/stshc/posts/291986193025986 Google images

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