Coleonyx Switaki
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Switak's banded gecko (''Coleonyx switaki''), also commonly known as the barefoot banded gecko, the barefoot gecko, and Switak's barefoot gecko, is a
species A species () is often defined as the largest group of organisms in which any two individuals of the appropriate sexes or mating types can produce fertile offspring, typically by sexual reproduction. It is the basic unit of Taxonomy (biology), ...
of
lizard Lizard is the common name used for all Squamata, squamate reptiles other than snakes (and to a lesser extent amphisbaenians), encompassing over 7,000 species, ranging across all continents except Antarctica, as well as most Island#Oceanic isla ...
in the
family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...
Eublepharidae. The species is indigenous to the extreme southwestern
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
and adjacent northwestern
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
.


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 ...
, ''switaki'', is in honor of German
herpetologist Herpetology (from Ancient Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is a branch of zoology concerned with the study of amphibians (including frogs, salamanders, and caecilians (Gymnophiona)) and reptiles (in ...
Karl-Heinz Switak (born 1938).Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (''Coleonyx switaki'', p. 259).


Geographic range

''C. switaki'' is native to southern
California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
in the United States and
Baja California Baja California, officially the Free and Sovereign State of Baja California, is a state in Mexico. It is the northwesternmost of the 32 federal entities of Mexico. Before becoming a state in 1952, the area was known as the North Territory of B ...
and
Baja California Sur Baja California Sur, officially the Free and Sovereign State of Baja California Sur, is a state in Mexico. It is the 31st and last state to be admitted, in 1974. It is also the second least populated Mexican state and the ninth-largest state by ...
in Mexico.


Habitat

The preferred natural
habitat In ecology, habitat refers to the array of resources, 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 manifestation of its ...
s of ''C. switaki'' are
desert A desert is a landscape where little precipitation occurs and, consequently, living conditions create unique biomes and ecosystems. The lack of vegetation exposes the unprotected surface of the ground to denudation. About one-third of the la ...
and rocky areas.


Taxonomy

'' Coleonyx gypsicolus'', which is
endemic Endemism is the state of a species being found only 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 foun ...
to Isla San Marcos in
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
, is sometimes considered a
subspecies In Taxonomy (biology), biological classification, subspecies (: subspecies) is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (Morphology (biology), morpholog ...
of ''C. switaki''.


Description

''C. switaki'' reaches a snout-to-vent length of . The body of ''C. switaki'' is covered in round brown spots. Despite one of its common names, Switak's banded gecko, ''C. switaki'' has a variable color pattern that may not feature bands.


Reproduction

''C. switaki'' is
oviparous Oviparous animals are animals that reproduce by depositing fertilized zygotes outside the body (i.e., by laying or spawning) in metabolically independent incubation organs known as eggs, which nurture the embryo into moving offsprings kno ...
.


References


Further reading

* Grismer LL (2001). "Geographic Variation of Color Pattern in Peninsular Populations of ''Coleonyx switaki'' (Squamata: Eublepharidae) from Baja California, Mexico and Southern California". ''Gekko'' 2 (1): 14–19. * Jones LLC, Lovich RE (2009). ''Lizards of the American Southwest: A Photographic Field Guide''. Tucson, Arizona: Rio Nuevo Publishers. 568 pp. * Murphy RW (1974). "A new genus and species of eublepharine gecko (Sauria: Gekkonidae) from Baja California, Mexico". ''Proc. California Acad. Sci., Fourth Series'' 40: 87-92. (''Anarbylus switaki'', new species). * Rösler H (2000). "''Kommentirte Liste der rezent, subrezent und fossil bekannten Geckotaxa (Reptilia: Gekkonomorpha)''". ''Gekkota'' 2: 28–153. (''Coleonyx switaki'', p. 63). (in German). * Stebbins RC (2003). ''A Field Guide to Western Reptiles and Amphibians, Third Edition''. The Peterson Field Guide Series ®. Boston and New York: Houghton Mifflin Company. 533 pp. . (''Coleonyx switaki'', pp. 265–266 + Plate 24 + Map 75). Switak's banded gecko Reptiles of Mexico Reptiles of the United States Fauna of the Southwestern United States Reptiles described in 1974 {{gecko-stub