''Sphaerodactylus roosevelti'', also known commonly as Roosevelt's beige sphaero or Roosevelt's least gecko, is a small

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

lizard Lizards are a widespread group of squamate reptiles, with over 7,000 species, ranging across all continents except Antarctica, as well as most oceanic island chains. The group is paraphyletic since it excludes the snakes and Amphisbaenia alt ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Sphaerodactylidae The Sphaerodactylidae are a family of geckos (Gekkota) distributed in North America, Central America, South America, and the Caribbean, as well as in Southern Europe, North Africa, the Middle East, and into Central Asia. The family contains 12 li ...

. The species is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

Puerto Rico Puerto Rico (; abbreviated PR; tnq, Boriken, ''Borinquen''), officially the Commonwealth of Puerto Rico ( es, link=yes, Estado Libre Asociado de Puerto Rico, lit=Free Associated State of Puerto Rico), is a Caribbean island and Unincorporated ...

Etymology

The

specific name Specific name may refer to: * in Database management systems, a system-assigned name that is unique within a particular database In taxonomy, either of these two meanings, each with its own set of rules: * Specific name (botany), the two-part (bino ...

, ''roosevelti'', is in honor of

Theodore Roosevelt Jr. Theodore Roosevelt III ( ), often known as Theodore Jr.Morris, Edmund (1979). ''The Rise of Theodore Roosevelt''. index.While it was President Theodore Roosevelt who was legally named Theodore Roosevelt Jr., the President's fame made it simple ...

, who was Governor of Puerto Rico in 1931.

Habitat

The preferred

habitat In ecology, the term habitat summarises the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species. A species habitat can be seen as the physical ...

s of ''S. roosevelti'' are

forest A forest is an area of land dominated by trees. Hundreds of definitions of forest are used throughout the world, incorporating factors such as tree density, tree height, land use, legal standing, and ecological function. The United Nations' ...

and

shrubland Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It m ...

at altitudes of .

Description

Adults of ''S. roosevelti'' have a snout-to-vent length (SVL) of . All

dorsal scales In snakes, the dorsal scales are the longitudinal series of plates that encircle the body, but do not include the ventral scales. Campbell JA, Lamar WW (2004). ''The Venomous Reptiles of the Western Hemisphere''. Ithaca and London: Comstock Publis ...

are large, strongly keeled, flattened, and overlapping. There is no middorsal zone of granular scales.

Thomas R Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (disambiguation) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the A ...

, Schwartz A (1966). "''Sphaerodactylus'' (Gekkonidae) in the Greater Puerto Rico Region". ''Bulletin of the Florida State Museum'' 10 (6): 193-260. (''Sphaerodactylus roosevelti'', pp. 234-236).

Reproduction

''S. roosevelti'' is

oviparous Oviparous animals are animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive method of most fish, amphibians, most reptiles, and all pterosaurs, dinosaurs (including birds), and ...

References

(1931). "The sphaerodactyls of Porto Rico, Culebra and Mona islands". ''Journal of the Department of Agriculture of Puerto Rico'' 15: 199–213. (''Sphaerodactylus roosevelti'', new species, p. 203). * Rösler H (2000). "''Kommentierte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha)''". ''Gekkota'' 2: 28–153. (''Sphaerodactylus roosevelti'', p. 114). (in German). * Schwartz A, Henderson RW (1991). ''Amphibians and Reptiles of the West Indies: Descriptions, Distributions, and Natural History''. Gainesville: University of Florida Press. 720 pp. . (''Sphaerodactylus roosevelti'', p. 528). *Schwartz A,

(1975). ''A Check-list of West Indian Amphibians and Reptiles''.

Carnegie Museum of Natural History The Carnegie Museum of Natural History (abbreviated as CMNH) is a natural history museum in the Oakland neighborhood of Pittsburgh, Pennsylvania. It was founded by Pittsburgh-based industrialist Andrew Carnegie in 1896. Housing some 22 millio ...

Special Publication No. 1.

Pittsburgh Pittsburgh ( ) is a city in the Commonwealth (U.S. state), Commonwealth of Pennsylvania, United States, and the county seat of Allegheny County, Pennsylvania, Allegheny County. It is the most populous city in both Allegheny County and Wester ...

: Carnegie Museum of Natural History. 216 pp. (''Sphaerodactylus roosevelti'', pp. 160–161). Sphaerodactylus Endemic fauna of Puerto Rico Reptiles of Puerto Rico Reptiles described in 1931 Taxa named by Chapman Grant {{Sphaerodactylus-stub

Etymology

Habitat

Description

Reproduction

References

Further reading