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Pholidoscelis corvinus (COPE, 1861)

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Higher TaxaTeiidae, Teiinae, Gymnophthalmoidea, Sauria, Squamata (lizards)
Subspecies 
Common NamesE: Sombrero Groundlizard, Sombrero Ameiva 
SynonymAmeiva corvina COPE 1861: 312
Ameiva corvina — SCHWARTZ & HENDERSON 1991: 189
Ameiva corvina — HARVEY et al. 2012
Pholidoscelis corvina — GOICOECHEA et al. 2016
Pholidoscelis corvinus — TUCKER et al. 2016 
DistributionLesser Antilles: Sombrero I

Type locality: Sombrero Island.  
Reproductionoviparous 
TypesSyntypes: ANSP 9115-30, MCZ 10525, MCZ 5531, MCZ 3613, MCZ 52215-16. 
DiagnosisDESCRIPTION: SVL in males to 111 mm; dorsal caudal scales keeled, straight; ventral scales 12-14 in a transverse row and 34-38 in a longitudinal row; fourth toe subdigital lamellae 68-82 (combined counts for both fourth toes); femoral pores 50-62 (combined counts for both series); fifteenth caudal verticil with about 33 scales. Dorsal and lateral surfaces dark brown to slaty black, patternless or with brown flecking on dorsum (males only); head distinctly browner in males; tail occasionally with green speckling; venter dark green to black, mottled light blue (Schwartz & Henderson 1991: 189). 
CommentAbundance: only known from the type locality (Meiri et al. 2017). 
References
  • Barbour, Thomas 1930. Some faunistic changes in the Lesser Antilles. Proc. New England Zool. Club 11: 73-85
  • Censky, E. J. and D. R. Paulson. 1992. Revision of the Ameiva (Reptilia: Teiidae) of the Anguilla Bank, West Indies. Annals of the Carnegie Museum 61:177-195.
  • Cope, E.D. 1861. On the Reptilia of Sombrero and Bermuda. Proc. Acad. Nat. Sci. Philadelphia 13: 312-314. - get paper here
  • Goicoechea, N., Frost, D. R., De la Riva, I., Pellegrino, K. C. M., Sites, J., Rodrigues, M. T. and Padial, J. M. 2016. Molecular systematics of teioid lizards (Teioidea/Gymnophthalmoidea: Squamata) based on the analysis of 48 loci under tree-alignment and similarity-alignment. Cladistics, doi: 10.1111/cla.12150 - get paper here
  • HARVEY, MICHAEL B.; GABRIEL N. UGUETO & RONALD L. GUTBERLET, Jr. 2012. Review of Teiid Morphology with a Revised Taxonomy and Phylogeny of the Teiidae (Lepidosauria: Squamata). Zootaxa 3459: 1–156 - get paper here
  • Meiri, Shai; Aaron M. Bauer, Allen Allison, Fernando Castro-Herrera, Laurent Chirio, Guarino Colli, Indraneil Das, Tiffany M. Doan, Frank Glaw, Lee L. Grismer, Marinus Hoogmoed, Fred Kraus, Matthew LeBreton, Danny Meirte, Zoltán T. Nagy, Cristiano d 2017. Extinct, obscure or imaginary: the lizard species with the smallest ranges. Diversity and Distributions - get paper here
  • Schwartz, A. & Henderson, R.W. 1991. Amphibians and Reptiles of the West Indies. University of Florida Press, Gainesville, 720 pp.
  • Shew, J. J., E. J. Censky, and R. Powell 2002. Ameiva corvina. Catalogue of American Amphibians and Reptiles 747: 1-2 - get paper here
  • Tucker, Derek B.; Guarino R. Colli, Lilian G. Giugliano, S. Blair Hedges, Catriona R. Hendry, Emily Moriarty Lemmon, Alan R. Lemmon, Jack W. Sites Jr., R. Alexander Pyron 2016. Methodological congruence in phylogenomic analyses with morphological support for teiid lizards (Sauria: Teiidae). Molecular Phylogenetics and Evolution 103: 75-84 - get paper here
 
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