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Helicops modestus GÜNTHER, 1861

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Higher TaxaColubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Common NamesOlive Keelback 
SynonymHelicops modestus GÜNTHER 1861: 425
Tachyplotus hedemanni REINHARDT 1866
Helicops assimilis REINHARDT 1866: 156
Helicops modestus — BOULENGER 1893: 277
Helicops modestus — CAMPOS NOGUEIRA 2001
Helicops modestus — KAWASHITA-RIBEIRO et al. 2013
Helicops modestus — WALLACH et al. 2014: 322 
DistributionBrazil (Minas Gerais, Distrito Federal, Goias, Bahia)

Type locality: Tropical America ? [Helicops modestus GÜNTHER 1861]
Type locality: Minas Gerais, Brazil [Helicops assimilis REINHARDT 1866] 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.
Reproductionviviparous (Braz et al. 2016) 
TypesType: BMNH 1946.1.14.42 (and possibly additional specimens). 

Types of H. assimilis and T. hedemanni in ZMUC. 
  • Boulenger, G.A. 1893. Catalogue of the snakes in the British Museum (Nat. Hist.) I. London (Taylor & Francis), 448 pp. - get paper here
  • Braz, Henrique B.; Rodrigo R. Scartozzoni, Selma M. Almeida-Santos 2016. Reproductive modes of the South American water snakes: A study system for the evolution of viviparity in squamate reptiles Zoologischer Anzeiger 263: 33-44; doi:10.1016/j.jcz.2016.04.003 - get paper here
  • Campos Nogueira, C. de 2001. New records of Squamate Reptiles in Central Brazilian Cerrado II: Brasília Region. Herpetological Review 32 (4): 285-287 - get paper here
  • Costa, Henrique C.; Diego J. Santana, Fernando Leal, Ricardo Koroiva, and Paulo C.A. Garcia 2016. A New Species of Helicops (Serpentes: Dipsadidae: Hydropsini) from Southeastern Brazil. Herpetologica Jun 2016, Vol. 72, No. 2: 157-166
  • Franca, F.G.R.; Daniel O. Mesquita, Cristiano C. Nogueira, and <br />Alexandre F. B. Araújo 2008. Phylogeny and Ecology Determine Morphological Structure in a Snake Assemblage in the Central Brazilian Cerrado. Copeia 2008 (1): 23-38 - get paper here
  • Freitas, Marco António de and Thaís Figueiredo Santos Silva. 2011. Geographic Distribution: Helicops modestus. Herpetological Review 42 (3): 394 - get paper here
  • Graca Salomão, M. da et al. 2003. Colubrid snakebite: a public health problem in Brazil. Herpetological Review 34 (4): 307-312 - get paper here
  • Günther, A. 1861. On the ophidian genus Helicops. Ann. Mag. Nat. Hist. (3) 7: 425-428 - get paper here
  • Hamdan, B. & R. M. Lira-da-Silva 2012. The snakes of Bahia State, northeastern Brazil: species richness, composition and biogeographical notes. Salamandra 48 (1): 31-50 - get paper here
  • Kawashita-Ribeiro, Ricardo Alexandre; Robson Waldemar Ávila, and Drausio Honorio Morais 2013. A New Snake of the Genus Helicops Wagler, 1830 (Dipsadidae, Xenodontinae) from Brazil. Herpetologica 69 (1): 80-90. - get paper here
  • Oliveira, Leonardo de; Rodrigo Roveri Scartozzoni, Selma Maria de Almeida-Santos, Carlos Jared, Marta Maria Antoniazzi, Maria da Graça Salomão 2016. Morphology of Duvernoy's Glands and Maxillary Teeth and a Possible Function of the Duvernoy's Gland Secretion in Helicops modestus Günther, 1861 (Serpentes: Xenodontinae). South American J. Herp. 11 (1): 54-65. - get paper here
  • Reinhardt, JOHANNES 1866. To nye Homalopsider. Aftryk. af naturh. Forenings Vidensk. Meddeleser; Naturhist. Foren. Kjöbenhavn (10-11): 151-161 - get paper here
  • Sazima, I.;Martins, M. 1990. Presas grandes e serpentes joves: quando os olhos sao maiores que a boca. Memórias do Instituto Butantan 52: 73-79 - get paper here
  • Vaz-Silva, W. et al. 2007. Herpetofauna, Espora Hydroelectric Power Plant, state of Goiás, Brazil. Check List 3 (4): 338-345 - 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.
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