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Rhadinella rogerromani (KÖHLER & MCCRANIE, 1999)

IUCN Red List - Rhadinella rogerromani - Near Threatened, NT

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Common Names 
SynonymRhadinaea rogerromani KÖHLER & MCCRANIE 1999
Rhadinella rogerromani — MYERS 2011
Rhadinella rogerromani — WALLACH et al. 2014: 644
Rhadinella rogerromani — SUNYER & MARTÍNEZ-FONSECA 2023 
DistributionNicaragua (Cerro Saslaya)

Type locality: “S slope of Cerro Saslaya (13°46.0’N, 85°02.3’W), 1450 m elevation, Región Autónoma Atlántico Norte, Nicaragua.”  
TypesHolotype: SMF 79156, a 286 mm male (G. Köhler and E. Köhler, 13 April 1999). 
DiagnosisDiagnosis: Rhadinaea rogerromani is a member of the R. godmani group, as defined by MYERS (1974), that differs from all of its congeners, except R. godmani, by the presence of 21-21-21 dorsal scale rows. From R. godmani it can be distinguished by its vivid reddish orange ventral coloration in life (versus bright golden yellow to white in R. godmani), the absence of a pale collar behind the head (a pale tan to yellow collar is usually present immediately behind the head in R. godmani, but collar may be broken into pale spots in some specimens), by having possibly more subcaudals (96 in male holotype of R. rogerromani; 78-95 subcaudals in male R. godmani, the sulcus spermaticus forking on the lower part of the spinose midsection with its branches nearly parallel (sulcus spermaticus forking near the edge of the capitulum with its branches widely divergent in R. godmani) (Köhler & McCranie 1999: 244). 
EtymologyNamed after Roger Roman, who is in charge of Nicaragua's Reserva de la Biosfera Bosawas, Managua. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Jansen, M. & G. Koehler 2002. Biogeographische Analyse der Herpetofauna von ausgewählten Hochlandgebieten Nicaraguas. Salamandra 38 (4): 269-286 - get paper here
  • Köhler, G. 2008. Reptiles of Central America. 2nd Ed. Herpeton-Verlag, 400 pp.
  • Köhler, G. & J. R. McCranie 1999. A new species of colubrid snake of the Rhadinea godmanni group from Cerro Saslaya, Nicaragua (Reptilia, Serpentes, Colubridae). Senckenbergiana biologica 79 (2): 243-249
  • McCranie J R 2006. New species of snake of the colubrid genus Rhadinaea (godmani group) from Parque Nacional El Cusuco, Honduras. Proc. Biol. Soc. Washington 119 (4): 528–533. - get paper here
  • Myers, Charles W. 2011. A New Genus and New Tribe for Enicognathus melanauchen Jan, 1863, a Neglected South American Snake (Colubridae: Xenodontinae), with Taxonomic Notes on Some Dipsadinae. American Museum Novitates (3715): 1-33 - get paper here
  • Sunyer, Javier 2014. An updated checklist of the amphibians and reptiles of Nicaragua. Mesoamerican Herpetology 1 (2): 186–202. - get paper here
  • Sunyer, Javier & José́ Gabriel Martínez-Fonseca 2023. An updated country checklist to the amphibians and reptiles of Nicaragua. REVISTA NICARAGÜENSE DE BIODIVERSIDAD (100): 1-25 - 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.
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