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Adelphicos ibarrorum CAMPBELL & BRODIE, 1988

IUCN Red List - Adelphicos ibarrorum - Endangered, EN

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymAdelphicos ibarrorum CAMPBELL & BRODIE 1988
Adelphicos ibarrorum — KÖHLER 2008
Adelphicos ibarrorum — WALLACH et al. 2014: 9 
DistributionS/C Guatemala, 2000-2100 m elevation

Type locality: 3 km SSE Chichicastenango, 2100 m elevation, in valley between Paxot and Caminibal, Quiché, Guatemala.  
TypesHolotype: UTA R-18696, a 521 mm female (J.A. Campbell, 14 June 1987). 
DiagnosisDiagnosis: This species is a member of the veraepacis group of Adelphicos; this group differs from A. quadrivirgatus, the only other member of the genus, by possessing a pattern of broad lateral stripes, a well-developed third infralabial and unexpanded chinshields, and more numerous hemipenial spines (condition unknown in A. ibarrorum). Adelphicos ibarrorum may be distinguished from all members of the veraepacis group, except occasional individuals of A. nigrilatus, by its bright orange ground color, immaculate venter, and absence of vertebral or dorsoventral stripes (in most specimens of A. nigrilatus the vertebral and dorsolateral body stripes are present). Adelphicos ibarrorum further differs from A. nigrilatus in usually having more ventrals in females [135-138 (x = 137.0) and 123-135 (x = 127.7), respectively], in having the distance across the eye contained 2.9-3.2 (x = 3.0) times in the snout length (1.4-2.6, x = 2.0, in A. nigrilatus), in having seven palatine teeth (10-11 in A. nigrilatus), and in reaching a greater length (521 mm vs. a known maximum of 451 mm for A. nigrilatus). For further differences that clearly distinguish A. ibarrorum from other members of the veraepacis group, see Table 1 and Remarks (Campbell & Brodie 1988). 
Commentonly known from the specimen(s) described in the original description (fide Campbell et al. 2018) 
EtymologyNamed after Professor Jorge Alfonso Ibarra (1921-2000), formerly Director of the Museo Nacional de Historia Natural, Guatemala, and German A. Ibarra, a naturalist and collector. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Campbell J A; Brodie E D Jr 1988. A new colubrid snake of the genus Adelphicos from Guatemala. Herpetologica 44 (4): 416-422 - get paper here
  • Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp.
  • 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.
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