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Sphaerodactylus levinsi HEATWOLE, 1968

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Higher TaxaSphaerodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies 
Common NamesE: Desecheo Geckolet, Desecheo Gecko, Isla Desecheo Least Gecko 
SynonymSphaerodactylus levinsi HEATWOLE 1968: 2
Sphaerodactylus levinsi — SCHWARTZ & HENDERSON 1991: 504
Sphaerodactylus levinsi — KLUGE 1993
Sphaerodactylus levinsi — RÖSLER 2000: 112 
DistributionPuerto Rico

Type locality: “Desecheo Island, Puerto Rico”  
Reproductionoviparous 
TypesHolotype: MCZ R 100274 (originally UPRRP 4566) 
DiagnosisDESCRIPTION: Size small (SVL in males to 28 mm, in females to 28 mm); dorsals
keeled, imbricate, axilla to groin 27-32; no area of middorsal granules or granular scales; ventrals smooth, cycloid, axilla to groin 28-32; dorsal caudal scales keeled, flat-lying, imbricate, acute, ventral caudal scales acute, imbricate, not enlarged midventrally; snout rather blunt, not depressed or decurved; snout scales rounded, swollen, weakly raised on posterior edge to weakly imbricate; 3 postnasals; 1 internasal; upper labials to mideye 3; gular scales smooth; chest scales smooth; midbody scales 46-48; escutcheon 4-6 x 12-17. Not sexually dichromatic; dorsum brown with darker brown spots tending to be aligned in longitudinal rows; scapular patch dark brown to near black, with a pair of near-white ocelli; U-shaped brown sacral figure; head with dark brown median preorbital stripe diverging anterior to eyes to enclose a conspicuous, longitudinal frontal bar, extending nearly to occiput, where brown stripes reconverge, isolating bar from other light-colored areas; dark brown lateral preorbital stripes diverge around eyes and extend separately across temporal region to fragment into spots near shoulder; prominent dark (near-black), round occipital spot followed by 2 pairs of faint spots; no well-defined nuchal spot (from Schwartz & Henderson 1991: 504). 
CommentAbundance: only known from the type locality (Meiri et al. 2017). 
EtymologyNamed in honor of Richard Levins, a companion of the author. 
References
  • Beolens, Bo; Michael Watkins, and Michael Grayson 2011. The Eponym Dictionary of Reptiles. Johns Hopkins University Press, Baltimore, USA - get paper here
  • Heatwole, H. 1968. Herpetogeography of Puerto Rico. V. Description of a new species of Sphaerodactylus from Desecheo Island. Breviora (292): 1-6 - get paper here
  • Meier,A.J. & Noble,R.E. 1990. Notes on the status and habits of the Desecheo Gecko, Sphaerodactylus levinsi. Journal of Herpetology 24 (4): 426-428 - 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
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Schwartz, A. & Henderson, R.W. 1991. Amphibians and Reptiles of the West Indies. University of Florida Press, Gainesville, 720 pp.
 
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