S. ramsdeni has a very large rostral which is bordered posteriorly by six scales. The scales between the orbits are smooth. The dorsal scales are small. The ventrals are smooth. The posterior margin of each caudal is convex.[4]
^Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore, Maryland: Johns Hopkins University Press. xiii + 296 pp. ISBN978-1-4214-0135-5. (Sphaerodactylus ramsdeni, p. 216).
Rösler H (2000). "Kommentiert Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha)". Gekkota2: 28–153. (Sphaerodactylus ramsdeni, p. 113). (in German).
Ruibal R (1959). "A New Species of Sphaerodactylus from Oriente, Cuba". Herpetologica15 (2): 89–93. (Sphaerodactylus ramsdeni, new species).
Schwartz A, Henderson RW (1991). Amphibians and Reptiles of the West Indies: Descriptions, Distributions, and Natural History. Gainesville, Florida: University of Florida Press. 720 pp. ISBN978-0813010496. (Sphaerodactylus ramsdeni, p. 524).
Schwartz A, Thomas R (1975). A Check-list of West Indian Amphibians and Reptiles. Carnegie Museum of Natural History Special Publication No. 1. Pittsburgh, Pennsylvania: Carnegie Museum of Natural History. 216 pp. (Sphaerodactylus ramsdeni, p. 160).