Monito Gecko

The Monito Gecko (Sphaerodactylus micropithecus) is a species of gecko endemic to the island of Monito, in the archipelago of Puerto Rico.

The Monito Gecko is restricted to two locations on Monito: along the island's northwestern shelf over a sea cave, and an area along the northeastern edge in the vicinity of Castle Rock measuring approximately 500 by 300 meters, an area of 0.15 km².It was discovered in May 1974 when a single adult and an egg were collected from the island of Monito.

It is endangered, unlike other Sphaerodactylus species. It is believed that its scarcity may be due to the introduction of rats to Monito and from habitat destruction caused by United States Navy bombing practices after World War II. In 1982, a survey was conducted to establish the population range and size of the species. A total of 18 individuals were observed. For these reasons the species was placed in the endangered species list on October 15, 1982 by the United States Fish and Wildlife Service.

When first described, the Monito Gecko was thought to be closely related to either the Mona Dwarf Gecko (Sphaerodactylus monensis), an endemic of the island of Mona located approximately 5 km southeast of Monito or to the Desecheo Dwarf Gecko (Sphaerodactylus levinsi) an endemic of the island of Desecheo. Subsequent studies proved that the Monito Gecko is more closely related to S. macrolepis, a species common throughout the Puerto Rican Bank.

Due to the rarity of the species...
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