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Anolis ernestwilliamsi LAZELL, 1983

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Higher TaxaAnolidae, Iguania, Sauria, Squamata (lizards)
Common NamesE: Carrot Rock Anole, Carrot Rock's anole, Ernest's Anole 
SynonymAnolis ernestwilliamsi LAZELL 1983: 102
Anolis ernestwilliamsi — SCHWARTZ & HENDERSON 1991: 258
Anolis ernestwilliamsi — BRANDLEY & DE QUEIROZ 2004
Ctenonotus ernestwilliamsi — NICHOLSON et al. 2012
Ctenonotus ernestwilliamsi — NICHOLSON et al. 2018 
DistributionPuerto Rico Bank, British Virgin Islands

Type locality: Carrot Rock, south of Peter Island, British Virgin Islands, 18°19’45’’N. 64°34’19’’ W, Caribbean Sea.  
TypesHolotype: MCZ 158395. 
DiagnosisDESCRIPTION: Size moderate (SVL in males to 82 mm, in females to 60 mm); 6-8
rows of loreals; scales between supraorbitals 0; 2-3 scales between interparietal and supraorbital semicircles; 5 postrostrals; 5 postmentals; suboculars in contact with supralabials; supradigital scales multicarinate; dorsals small, granular, 2 mid-dorsal rows enlarged, bluntly tectiform; ventrals tectiform or keeled anteriorly (chest), smooth posteriorly. Dorsum (metachrosis from darker to lighter, not brown-green) brown to gray; laterodorsal trunk and neck boldly patterned with near-white to yellow spots and marblings that coalesce to form stripes as well as isolated spots of darker pigment ventrolaterally; a dark bar or blotch on each side of sacrum, set off posteriorly by pale (ashy or tan) border; females similar but mid- dorsal stripe irregularly edged, often fragmented, in weak contrast to bold laterodorsal pattern; venter yellowish; chin tricolored with bold, reticulate, or
barred pattern of near-black to gray or lighter blue-gray with egg-shell white to creamy blotches; in males, chin pattern extends onto anterior dewlap, in females to level of eye; dewlap deep crimson with green center and white to gray scales, anterior 30° of extended dewlap boldly reticulate with slate- and blue-gray and
cream-white (Schwartz & Henderson 1991: 258). 
CommentFor illustrations see Lazell, 1983.
Ecomorph class: trunk-ground.

Species group: Ctenonotus cristatellus species group (fide NICHOLSON et al. 2012).

Abundance: only known from the type locality (Meiri et al. 2017). 
EtymologyNamed after Ernest E. Williams (1914-1998), American herpetologist. 
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Brandley, M.C. & De Queiroz, K. 2004. Phylogeny, ecomorphological evolution, and historical biogeography of the Anolis cristatellus series. Herpetological Monographs 18: 90-126 - get paper here
  • Cooper Jr., W.E. 2005. Duration of movement as a lizard foraging movement variable. Herpetologica 61 (4): 363-372 - get paper here
  • Lazell, J. D., Jr. 1983. Biogeography of the herpetofauna of the British Virgin Islands, with description of a new anole (Sauria: Iguanidae), p. 99-1 17. In A. G. J. Rhodin and K. Miyata (eds.), Advances in Herpetology and Evolutionary Biology. Essays in Honor of Ernest E. W Museum of Comparative Zoology, pp. 99-117 - 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
  • NICHOLSON, KIRSTEN E.; BRIAN I. CROTHER, CRAIG GUYER & JAY M. SAVAGE 2012. It is time for a new classification of anoles (Squamata: Dactyloidae). Zootaxa 3477: 1–108 - get paper here
  • NICHOLSON, KIRSTEN E.; BRIAN I. CROTHER, CRAIG GUYER & JAY M. SAVAGE 2018. Translating a clade based classification into one that is valid under the international code of zoological nomenclature: the case of the lizards of the family Dactyloidae (Order Squamata). Zootaxa 4461 (4): 573–586 - get paper here
  • Poe, S. 2013. 1986 Redux: New genera of anoles (Squamata: Dactyloidae) are unwarranted. Zootaxa 3626 (2): 295–299 - get paper here
  • Roughgarden, J. 1995. Anolis Lizards of the Caribbean: Ecology, Evolution, and Plate Tectonics. OXFORD UNIVERSITY PRESS, 200 pp.
  • Schwartz, A. & Henderson, R.W. 1991. Amphibians and Reptiles of the West Indies. University of Florida Press, Gainesville, 720 pp.
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