Sphaerodactylus is a genus of geckos from the Americas that are distinguished from other Gekkota by their small size, by their round, rather than vertical, eye pupils, and by each digit terminating in a single, round adhesive pad or scale, from which their name (Sphaero = round, dactylus = finger) is derived. All species in this genus are rather small, but two species, S. ariasae and S. parthenopion, are tiny, and – with a snout-vent length of about 1.6 cm – the smallest reptiles in the world.

Fossil record

Fossil remains referred to Sphaerodactylus have been recovered from Dominican amber.

Species

The following 108 species are recognized as being valid. Nota bene: A binomial authority in parentheses indicates that the species was originally described in a genus other than Sphaerodactylus.