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Geophis zeledoni TAYLOR, 1954

IUCN Red List - Geophis zeledoni - Least Concern, LC

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common Names 
SynonymGeophis zeledoni TAYLOR 1954
Geophis zeledoni - VILLA et al. 1988
Geophis zeledoni — WILSON & TOWNSEND 2007: 19
Geophis zeledoni — WALLACH et al. 2014: 306 
DistributionCosta Rica (Cordillera Central), ca. 1829-2100 m elevation.

Type locality: Finca Zeledón, ca. 1829 m elevation, between Volcán Barba and Volcán Poás, Costa Rica. Map legend:
TDWG region - Region according to the TDWG standard, not a precise distribution map.

NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
 
Reproductionoviparous 
TypesHolotype: KU 31992, University of Kansas Natural History Museum & Biodiversity Research Center, collected 24 July 1952 by E.H. Taylor. 
CommentDiagnosis: This species is distinctive within the Geophis sieboldi species group in the following combination of features: (1) usually six supralabials, often five; (2) two supralabials lie posterior to orbit; (3) no anterior temporal or postlabials; (4) last supralabial usually separated from the parietal by a short posterior temporal; (5) usually three jubals posterior to the posterior temporal and last supralabial and the upper jubal in contact with the parietal; (6) dorsal scales in 15–15–15 rows; (7) caudal scales weakly keeled to smooth; (8) first tooth at tip of maxilla or preceded by a short toothless area; posterior half of maxilla depressed, curving ventrad posteriorly; (9) ventrals 139–143.7–149 in males (N = 15), 141–144.8–150 in females (N = 14); subcaudals 37–43.1–46 in males (N = 13), 36–39.3–43 in females (N = 12); ventrals plus subcaudals 178–184.4–191 (N = 12); (10) dorsum and upper surface of tail uniform black; no light head band in juveniles; venter banded or variegated; subcaudals mostly to entirely black. 
References
  • Downs, F. L. 1967. lntrageneric relations among colubrid snakes of the genus Geophis Wagler. Misc. Publ. Mus. Zool. Univ. Michigan 131: 1-193. - get paper here
  • Köhler, Gunther, Joseph Vargas, Johannes J. Köhler and Milan Vesel´y. 2013. Noteworthy distributional records of amphibians and reptiles from Costa Rica. Herpetological Review 44 (2): 280-283
  • Lips K R. Savage J M. 1994. A new fossorial snake of the genus Geophis (Reptilia: Serpentes: Colubridae) from the Cordillera de Talamanca of Costa Rica. Proc. Biol. Soc. Washington 107 (2): 410-416. - get paper here
  • Restrepo T J H; Wright J W 1987. A new species of the colubrid snake genus Geophis from Colombia. Journal of Herpetology 21 (3): 191-196 - get paper here
  • Savage, J.M. 2002. The Amphibians and Reptiles of Costa Rica: A Herpetofauna Between Two Continents, Between Two Seas. University of Chicago Press, 934 pp. [review in Copeia 2003 (1): 205]
  • Savage, Jay M.; Watling, James I. 2008. Not so rare snakes: a revision of the Geophis sieboldi group (Colubridae: Dipsadinae) in lower Central America and Colombia. Zoological Journal of the Linnean Society 153(3):561-599
  • Taylor,E.H. 1954. Further studies on the serpents of Costa Rica. Univ. Kansas Sci. Bull. 36: 673-800. - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. Taylor and Francis, CRC Press, 1237 pp.
  • WILSON, L.D. & J.H. TOWNSEND 2007. A checklist and key to the snakes of the genus Geophis (Squamata: Colubridae: Dipsadinae), with commentary on distribution and conservation. Zootaxa 1395: 1-31 - get paper here
 
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