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Sphaerodactylus difficilis BARBOUR, 1914

IUCN Red List - Sphaerodactylus difficilis - Least Concern, LC

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Higher TaxaSphaerodactylidae, Gekkota, Sauria, Squamata (lizards: geckos) 
SubspeciesSphaerodactylus difficilis anthracomus SCHWARTZ 1983
Sphaerodactylus difficilis difficilis BARBOUR 1914
Sphaerodactylus difficilis diolenius SCHWARTZ 1983
Sphaerodactylus difficilis euopter SCHWARTZ 1983
Sphaerodactylus difficilis lycauges SCHWARTZ 1983
Sphaerodactylus difficilis peratus SCHWARTZ 1983
Sphaerodactylus difficilis typhlopous SCHWARTZ 1983 
Common NamesHispaniolan eyespot sphaero, Difficult Least Geckko 
SynonymSphaerodactylus difficilis BARBOUR 1914:265
Sphaerodactylus notatus difficilis — SHREVE 1968
Sphaerodactylus difficilis — SCHWARTZ & HENDERSON 1991: 487
Sphaerodactylus difficilis — KLUGE 1993
Sphaerodactylus difficilis — RÖSLER 2000: 111 
DistributionDominican Republic (Oviedo, Prov. Pedernales, La Vega, Santiago, Espaillat, Duarte, S Puerto Plata), Muertos, Hispaniola, Ile de la Tortue (Haiti)

difficilis: north-central República Dominicana. Altitudinal distribution about 300 ft. to at least 2000 ft.

anthracomus: east coast of Peninsula de Barahona, República Dominicana.

diolenius: south-central and eastern República Dominicana; Isla Pascal in Bahia de Samana; presumably the subspecies at Hinche, Dépt. du Centre, Haiti.

euopter: Île de la Tortue.

lycauges: all of northern Haiti.

peratus: extreme northeastern República Dominicana (absent from Peninsula de Samana).

typhlopous: northwestern República Dominicana, inland to Santiago Rodriguez and Santiago provinces; Cayos Siete Hermanos; specimens from northern slopes or interior Cordillera Central intergradient between S. d. typhlopous, S. d. difficilis, and probably S. d. lycaugues.

Type locality: Santiago de la Vega, La Vega Province, República Dominicana. 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.
 
Reproductionoviparous 
TypesHolotype: MCZ 7834.
Holotype: CM 52279 [anthracomus]
Holotype: USNM 166967 [diolenius]
Holotype: CM 54142 [euopter]
Holotype: CM 52251 [lycauges]
Holotype: CM 52264 [peratus]
Holotype: USNM 166966 [typhlopous] 
CommentFor illustrations see Cochran, 1941; Shreve, 1968 (as S. notatus difficilis); Schwartz, 1983. 
References
  • Barbour, Thomas 1914. A Contribution to the Zoögeography of the West Indies, with Especial Reference to Amphibians and Reptiles. Memoirs of the Museum of Comparative Zoölogy 44 (2): 205-359 - get paper here
  • Cochran, D.M. 1941. The herpetology of Hispaniola. Bull. US Natl. Mus. 177: vii + 398 pp. - get paper here
  • Cunningham, Carol A.; Tulloch, John S.; Powell, Robert 1993. Food habits of four Hispaniolan species of Sphaerodactylus (Lacertilia: Gekkonidae). Herpetological Natural History 1 (2): 1-10
  • Rösler, H. 2000. Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha). Gekkota 2: 28-153
  • Rösler, Herbert 2017. Gecko-Chorologie (Squamata: Gekkota). Gekkota (4): 1-160
  • Schwartz, A. 1983. Part 1. Sphaerodactylus difficilis, S. clenchi, and S. lazelli. Pp. 5-30. In: Schwartz, A., and R. Thomas. The difficilis complex of Sphaerodactylus (Sauria, Gekkonidae) of Hispaniola. Bulletin of Carnegie Museum of Natural History, (22): 1-60
  • Schwartz, A. & Henderson, R.W. 1991. Amphibians and Reptiles of the West Indies. University of Florida Press, Gainesville, 720 pp.
  • Shreve, B. 1968. The notatus group of Sphaerodactylus (Sauria, Gekkonidae) in Hispaniola. Breviora (280): 1-28 - get paper here
  • Teale, H. K. 1930. Incubation period of Hemidactylus brooki [sic] Gray and Sphaerodactylus difficilis Barbour. Copeia, 1930(2): 52 - get paper here
  • Thomas R. and S. B. Hedges 1988. Two new geckos (Sphaerodactylus) from the Sierra Martin Garcia of Hispaniola. Herpetologica 44: 96-104. - get paper here
  • Thomas, Richard and S. Blair Hedges 1998. A new gecko from the Sierra de Neiba of Hispaniola (Squamata: Gekkonidae: Sphaerodactylus). Herpetologica 54 (3): 333-336 - get paper here
 
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