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Ninia celata MCCRANIE & WILSON, 1995

IUCN Red List - Ninia celata - Near Threatened, NT
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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common Names 
SynonymNinia celata MCCRANIE & WILSON 1995
Ninia celata — SAVAGE 2002
Ninia celata — WALLACH et al. 2014: 486 
DistributionCosta Rica (Alajuela), W Panama (N slopes of Cerro Pando), 800-1600 m elevation.

Type locality: Cinchona (Isla Bonita), Atlantic side of Volcán Poás, 1200 m elevation, Provincia de Alajuela, Costa Rica.  
Reproductionoviparous 
TypesHolotype: KU 31971, female, collected by Edward H. Taylor, 19 July 1952 
DiagnosisDiagnosis: Ninia celata can be distinguished from all other species of Ninia by the following combination of characteristics: 19 rows of dorsal scales; 123-126 (Ave = 124.3) ventrals in males, 123-127 (x = 125.8) in females; 43-45 (Ave = 44.3) subcaudals in males, 33-40 (Ave = 36.0) in females; 158-171 (Ave = 164.4) segmented counts; parietals greatly reduced in size (PS/HL 0.176-0.208, Ave = 0.189); eyes reduced in size (EL/HL 0.108-0.139, Ave = 0.126); dorsal surfaces uniformly dark brown to black, except for a distinctive pale nuchal collar; venter of body immaculate. Diagnostic characters that will distinguish N. celata from the northern South American and eastern Panamanian N. atrata (number of ventrals, subcaudals, and segmental counts; parietals greatly reduced in size, [PS/ HL]; small eye size [EL/HL]; upper secondary temporal shape [STL/STH]) are presented in Table 1 (also see Fig. 1). Characters that will distinguish N. celata from the Honduran-Salvadoran taxon are presented in the diagnosis of that species. (MCCRANIE & WILSON 1995)
 
CommentDistribution: Reports from Honduras and Costa Rica are now referred to Ninia celata (SVAGAE 2002). 
Etymologyfrom the Latin “celo” (to hide) and the suffix -atus (pertaining to), in reference to the fact that this species has remained hidden within the taxon atrata as a result of the confusion created by Dunn whenhe identified at least part of the BMNH Cartago series of N. maculata as N. atrata (after MCCRANIE & WILSON 1995]. 
References
  • Angarita-Sierra, Teddy 2014. Hemipenial Morphology in the Semifossorial Snakes of the Genus Ninia and a New Species from Trinidad, West Indies (Serpentes: Dipsadidae) . South American J. Herp. 9 (2): 114-130 - get paper here
  • Mccranie, J.R. & L.D. Wilson 1995. Two new species of Colubrid snakes of the genus Ninia from central America. Journal of Herpetology 29 (2): 224-232 - 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]
  • Solorzano, A. 2004. Serpientes de Costa Rica - Snakes of Costa Rica. Editorial INBio, Costa Rica, 792 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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