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Rhadinella schistosa SMITH, 1941

IUCN Red List - Rhadinella schistosa - Least Concern, LC

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesBrokencollar Graceful Brown Snake 
SynonymRhadinella schistosa SMITH 1941
Rhadinaea schistosa — MARX 1976
Rhadinaea schistosa — LINER 1994
Rhadinaea schistosa — LINER 2007
Rhadinella schistosa — MYERS 2011
Rhadinella schistosa — WALLACH et al. 2014: 644 
DistributionMexico (C Veracruz)

Type locality: Cuautlapan, Veracruz.  
Reproductionoviparous 
TypesHolotype: FMNH 100065 
DiagnosisDiagnosis (genus): See group definition in Myers (1974: 119). Separated from Rhadinaea and most other dipsadines by the straight-line arrangement of several enlarged posterior maxillary teeth (ultimate fang not offset). The maxillary dentition is similar in Trimetopon, a variable genus of diminutive snakes in lower Central America that differs from Rhadinella in lacking a basal nude pocket on the hemipenis (MYERS, unpublished, and MYERS 2011). 
CommentRhadinaea schistosa mimicks Micrurus elegans (TORRE-LORANCA et al. 2006).

Type species: Rhadinella schistosa SMITH 1941 is the type species of the genus Rhadinella SMITH 1941 which was resurrected by MYERS 2011. 
Etymology 
References
  • Ariano-Sánchez, D. y J. Campbell. 2018. A new species of Rhadinella (Serpentes: Dipsadidae) from the dry forest of Motagua Valley, Guatemala. Zootaxa 4442 (2): 338-344 - get paper here
  • CAMPBELL, JONATHAN A. 2015. A new species of Rhadinella (Serpentes: Colubridae) from the Pacific versant of Oaxaca, Mexico. Zootaxa 3918 (3): 397–405 - get paper here
  • CAMPILLO, GUSTAVO; LUIS FERNANDO DÁVILA-GALAVÍZ, OSCAR FLORES-VILLELA, JONATHAN A. CAMPBELL 2016. A new species of Rhadinella (Serpentes: Colubridae) from the Sierra Madre del Sur of Guerrero, Mexico Zootaxa 4103 (2): 165-173 - get paper here
  • Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp
  • Liner, Ernest A. 2007. A CHECKLIST OF THE AMPHIBIANS AND REPTILES OF MEXICO. Louisiana State University Occasional Papers of the Museum of Natural Science 80: 1-60 - get paper here
  • Marx, Hymen 1976. Supplementary catalogue of type specimens of reptiles and amphibians in Field Museum of Natural History. Fieldiana: Zoology 69 (2): 33-94 - 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
  • Smith,H.M. 1941. A new genus of Mexican snakes related to Rhadinaea. Copeia 1941 (1): 7-10 - get paper here
  • Torre-Loranca, M.A. de la; Aguirre-León, G. & López-Luna, M.A. 2006. Coralillos verdaderos (Serpentes: Elapidae) y Coralillos falsos (Serpentes: Colubridae) de Veracruz, México. Acta Zoologica Mexicana 22 (3): 11-22 - 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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