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Leptophis coeruleodorsus OLIVER, 1942

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Higher TaxaColubridae, Colubrinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) 
Subspecies 
Common NamesOliver’s parrot snake 
SynonymLeptophis coeruleodorsus OLIVER 1942:4
Ahaetulla liocercus — REINHARDT & LÜTKEN 1862: 10
Dendrophis liocercus — COURT 1884: 382
Leptophis liocercus — MOLE & URICH 1894a: 85
Leptophis ahaetulla ortoni — BEEBE 1946: 34
Leptophis coeruleodorsus — BEEBE 1946: 34
Thalerophis richardi coeruleodorsus — OLIVER 1948: 228
Leptophis ahaetulla coeruleodorsus — ICZN 1958: 270
Leptophis ahaetulla coeruleodorsus — PETERS & OREJAS-MIRANDA 1970
Leptophis ahaetulla coeruleodorsus — MERTENS 1972
Leptophis ahaetulla — EMSLEY 1977: 241
Leptophis ahaetulla coeruleodorsus — KORNACKER 1997
Leptophis ahaetulla coeruleodorsus — GORZULA & SEÑARIS 1999
Leptophis ahaetulla coeruleodorsus — BOOS 2001
Leptophis coeruleodorsus — MURPHY et al. 2013 
DistributionVenezuela, Tobago, Trinidad, Isla de Margarita ?

Type locality: Trinidad, British West Indies. Here we restrict the type locality to Mt. St. Benedict, Tunapuna, Trinidad (~10°39’N 61°23’W). There are three well documented specimens collected from this location. Map legend:
Type locality - Type locality.
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.
 
Reproductionoviparous. 
TypesHolotype: AMNH 209022 (formerly AMNH 9022). 
CommentNot listed by WALLACH et al. 2014:372 but mentioned under L. ahaetulla as valid fide Navarrete et al. 2009: 61.

Diagnosis. The absence of a loreal distinguishes L. coeruleodorsusus from L. depressirostris, L. diplotropis, and L. mexicanus. A broad, green mid-dorsal stripe with copper to bronze dorsolateral stripes that fade posteriorly and a head that lacks scales outlined in black will separate if from L. ahaetulla (and all its subspecies), L. cupreus, L. modestus L. nebulosus, L. riveti, L. stimsoni. The color pattern of L. haileyi sp nov. in life is unknown; but it has nine upper labials with the last upper labial the longest and in contact with the primary temporal scale [Murphy et al. 2013].

Distribution: Literature reports of L. coeruleodorsus on the Isla de Margarita need verification. Pérez-Santos (1988) reported this species from western Colombia, probably based upon mis-identified L. a. occidentalis. 
References
  • Beebe, William 1946. Field notes on the snakes of Kartabo, British Guiana, and Caripito, Venezuela. Zoologica 31: 11-52
  • Boos, H.E.A. 2001. The snakes of Trinidad and Tobago. Texas A&M University Press, 270 pp.
  • Gorzula, Stefan & Senaris, J. Celsa 1999. In: Contribution to the herpetofauna of the Venezuelan Guayana. I: a data base. Scientia Guaianae, Caracas, No. 8 [1998], 269+ pp.; ISBN 980-6020-48-0
  • Kornacker, Paul M.;Dederichs, Ursula 1997. Herpetologische Eindrücke einer Venezuelareise. Elaphe 5 (3): 87-96
  • Mertens, R. 1972. Herpetofauna tobagana. Stuttgarter Beitr. zur Naturkunde nr. 252 22 pp. - get paper here
  • MURPHY, JOHN C.; STEVLAND P. CHARLES, RICHARD M. LEHTINEN & KRISTA L. KOELLER 2013. A molecular and morphological characterization of Oliver’s parrot snake, Leptophis coeruleodorsus (Squamata: Serpentes: Colubridae) with the description of a new species from Tobago. Zootaxa 3718 (6): 561–574 - get paper here
  • Natera-Mumaw, Marco; Luis Felipe Esqueda-González & Manuel Castelaín-Fernández 2015. Atlas Serpientes de Venezuela Santiago de Chile, Dimacofi Negocios Avanzados S.A., 456 pp. - get paper here
  • Navarrete, L.F.; López-Johnston, J.C. & Dávila Blanco, A. 2009. Guia de las Serpientes de Venezuela [2da Edición]. Zoocriadero Ecopets, Bioreptilia, y Grupo Río Verde, Caracas, 102 pp.
  • Oliver, J. A. 1942. A check list of the snakes of the genus Leptophis, with descriptions of new forms. Occ. Pap. Mus. Zool., Univ. Michigan (No. 462): 19 pp. - get paper here
  • Oliver, J. A. 1948. The relationships and zoogeography of the genus Thalerophis Oliver. Bull. Amer. Mus. Nat. Hist. 92: 157-280.
 
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