Sphaerodactylus ariasae

Sphaerodactylus ariasae

Sphaerodactylus ariasae, Jaragua sphaero, Jaragua dwarf gecko

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Sphaerodactylus ariasae

Sphaerodactylus ariasae, commonly called the Jaragua sphaero or the Jaragua dwarf gecko, is the smallest species of lizard in the family Sphaerodactylidae.

Animal name origin

The Jaragua sphaero's binomial name was chosen in honor of herpetologist Yvonne Arias, the leader of the Dominican conservation organization Grupo Jaragua, which was instrumental in securing the environmental protection of Jaragua National Park.


Sphaerodactylus ariasae is the world's smallest known reptile. The second-smallest is S. parthenopion, native to the British Virgin Islands. The Jaragua sphaero measures 14-18 mm (0.55-0.71 in) from the snout to the base of the tail and can fit on a US 25-cent coin. It has an average weight of just 0.13 g (0.00455 of an ounce). By contrast, the blue whale is 1,600 times longer and more than 1 billion times heavier.



Biogeographical realms

The geographic range of S. ariasae is believed to be limited to Jaragua National Park, in the southernmost tip of the Barahona Peninsula, in the extreme southwest of the Dominican Republic and nearby forested Beata Island.

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The preferred natural habitat of S. ariasae is the leaf litter of the forest floor of dry forests with limestone substratum.

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Sphaerodactylus ariasae habitat map


Sphaerodactylus ariasae habitat map
Sphaerodactylus ariasae
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Habits and Lifestyle


Diet and Nutrition

Mating Habits

S. ariasae is oviparous.


1. Sphaerodactylus ariasae Wikipedia article - https://en.wikipedia.org/wiki/Sphaerodactylus_ariasae
2. Sphaerodactylus ariasae on The IUCN Red List site - https://www.iucnredlist.org/species/75605318/115485387

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