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Agkistrodon howardgloydi CONANT, 1984

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Higher TaxaViperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Gloyd’s Moccasin
G: Gloyds Mokassinschlange 
SynonymAgkistrodon bilineatus howardgloydi CONANT 1984: 135
Agkistrodon bilineatus howardgloydi — VILLA 1984:18
Agkistrodon bilineatus howardgloydi — GLOYD & CONANT 1990: 87
Agkistrodon bilineatus howardgloydi — MCDIARMID et al. 1999
Agkistrodon bilineatus howardgloydi —PARKINSON et al. 2000: 412
Agkistrodon bilineatus howardgloydi —SMITH & CHISZAR 2001: 134
Agkistrodon bilineatus howardgloydi —CAMPBELL & LAMAR 2004: 263
Agkistrodon howardgloydi — PORRAS et al. 2013
Agkistrodon howardgloydi — SUNYER & MARTÍNEZ-FONSECA 2023 
DistributionNW Costa Rica, W Nicaragua, S Honduras

Type locality: tropical dry forest, 0.8 km north of Mirador el Cañon del Tigre, Parque Nacional Santa Rosa, Guanacaste, Costa Rica.  
Reproductionviviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: AMNH 125525, male 
DiagnosisAdditional details, e.g. a detailed description or comparisons (6328 characters), are available for collaborators and contributors. Please contact us for details. 
CommentVenomous!

Synonymy: WALLACH et al. 2014 lists this species as synonym of A. bilineatus.

Similar species: Agkistrodon howardgloydi and A. russeolus are genetically very closely related (Alencar et al. 2016).

Distribution: See map in Trutnau (2001) and Porras et al. 2013.

Illustration in Penner (2001). 
EtymologyNamed after Howard Kay Gloyd (1902-1978), American herpetologist. 
References
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  • Bolanos, R., & MONTERO, J. R. 1971. Agkistrodon bilineatus Günther from Costa Rica. Revista de Biologia Tropical 16 [1970]: 277-279. - get paper here
  • Burger, W.L. & Robertson,W.B. 1951. A new subspecies of the Mexican moccasin, Agkistrodon bilineatus. Univ. Kansas Sci. Bull. 34 (5): 213-218 - get paper here
  • Calmonte, T. 1982. Agkistrodon bilineatus taylori - ein selten imprtierter Dreieckskopf aus Mexiko. Herpetofauna 4 (20): 26-27 - get paper here
  • Campbell, J.A. & Lamar, W.W. 1989. The Venomous Reptiles of Latin America. Comstock Publishing/Cornell University Press, Ithaca
  • Castro-Franco, R. & Guadalupe Bustos Zagal, M. 2004. Additional records and range extensions of reptiles from Morelos, México. Herpetological Review 35 (2): 196-197 - get paper here
  • Conant, R. 1984. A new subspecies of the pit viper Agkistrodon bilineatus (Reptilia: Viperidae) from Central America. Proc. Biol. Soc. Washington 97: 135-141 - get paper here
  • Cruz, G.; Wilson, L.D.; Espinosa, J. 1979. Two ADDITIONS TO THE REPTILE FAUNA OF HONDURAS) EUMECES MANAGUAE DUNN AND AGKISTRODON BILINEATUS (GUNTHER)) WITH COMMENTS ON PELAMIS PLATURUS (LINNAEUS). Herpetological Review 10 (1): 26-27 - get paper here
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  • Gloyd, H. K. 1972. A subspecies of Agkistrodon bilineatus (Serpentes: Crotalidae) on the Yucatán Peninsula, México. Proc. Biol. Soc. Washington 84: 327-334. - get paper here
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  • Porras, L.W. & Solórzano, A. 2006. Costa Rica’s venomous snakes. Reptilia (GB) (48): 11-17 - get paper here
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