Sphaerodactylus difficilis BARBOUR, 1914

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Higher Taxa	Sphaerodactylidae, Gekkota, Sauria, Squamata (lizards: geckos)
Subspecies	Sphaerodactylus 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 Names	E: Hispaniolan Eyespotted Geckolet, Hispaniolan eyespot sphaero, Difficult Least Geckko
Synonym	Sphaerodactylus difficilis BARBOUR 1914:265 Sphaerodactylus difficilis — COCHRAN 1941 Sphaerodactylus notatus difficilis — SHREVE 1968 Sphaerodactylus difficilis difficilis Sphaerodactylus difficilis — SCHWARTZ & HENDERSON 1991: 487 Sphaerodactylus difficilis — KLUGE 1993 Sphaerodactylus difficilis — RÖSLER 2000: 111 Sphaerodactylus difficilis anthracomus SCHWARTZ 1983 Sphaerodactylus difficilis anthracomus SCHWARTZ 1983: 22 Sphaerodactylus difficilis anthracomus — SCHWARTZ & HENDERSON 1988 Sphaerodactylus difficilis anthracomus — DE LISLE et al. 2013 Sphaerodactylus difficilis diolenius SCHWARTZ 1983 Sphaerodactylus difficilis diolenius SCHWARTZ 1983: 19 Sphaerodactylus difficilis diolenius — SCHWARTZ & HENDERSON 1988: 176 Sphaerodactylus difficilis diolenius — DE LISLE et al. 2013 Sphaerodactylus difficilis euopter SCHWARTZ 1983 Sphaerodactylus difficilis euopter SCHWARTZ 1983: 13 Sphaerodactylus difficilis euopter — SCHWARTZ & HENDERSON 1988: 176 Sphaerodactylus difficilis euopter — DE LISLE et al. 2013 Sphaerodactylus difficilis lycauges SCHWARTZ 1983 Sphaerodactylus difficilis lycauges SCHWARTZ 1983: 11 Sphaerodactylus difficilis lycauges — SCHWARTZ & HENDERSON 1988: 177 Sphaerodactylus difficilis lycauges — DE LISLE et al. 2013 Sphaerodactylus difficilis peratus SCHWARTZ 1983 Sphaerodactylus difficilis peratus SCHWARTZ 1983: 17 Sphaerodactylus difficilis peratus — SCHWARTZ & HENDERSON 1988: 177 Sphaerodactylus difficilis peratus — DE LISLE et al. 2013 Sphaerodactylus difficilis typhlopous SCHWARTZ 1983 Sphaerodactylus difficilis typhlopous SCHWARTZ 1983: 14 Sphaerodactylus difficilis typhlopous — SCHWARTZ & HENDERSON 1988: 177 Sphaerodactylus difficilis typhlopous — DE LISLE et al. 2013
Distribution	Dominican 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. Type locality: Santiago de la Vega, La Vega Province, República Dominicana. anthracomus: east coast of Peninsula de Barahona, República Dominicana. Type locality: 1 km NE Paraiso, Rio Nizaito, Barahona Province, Republica Domincana diolenius: south-central and eastern República Dominicana; Isla Pascal in Bahia de Samana; presumably the subspecies at Hinche, Dépt. du Centre, Haiti. Type locality: 2 mi. (3.2 km) SE San Cristobal, San Cristobal Province, Republica Dominicana. euopter: Île de la Tortue. Type locality: Vicinity of Palmiste, Ile de la Tortue, Haiti. lycauges: all of northern Haiti. Type locality: Cap-Ha'itien, Departement du Nord, Haiti. peratus: extreme northeastern República Dominicana (absent from Peninsula de Samana). Type locality: 5 km NW Los Yayales, Maria Trinidad Sanchez Pro- vince, Republica Dominicana. 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: 3 km NE Sosua, Puerto Plata Province, Republica Dominicana.
Reproduction	oviparous
Types	Holotype: 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]
Diagnosis
Comment	For 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 Grant, C. 1952. Sexual and Growth Changes in the Pattern of the Gecko Sphaerodactylus difficilis Barbour Copeia 1952 (3): 187-188. - get paper here 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
External links	IUCN Red List National Center for Biotechnology Information http://www.kingsnake.com/westindian/diapsida1.html http://www.arod.com.au/arod/reptilia/Squamata/Typhlopidae/Ramphotyphlops… http://artsci.wustl.edu/~reglor/lizardgall/lizardgall.html https://bioweb.bio/faunaweb/reptiliaweb/FichaEspecie/Anolis%20dracula Google images

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