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 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 ...
of
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 ...
Eublepharidae The Eublepharidae are a family of geckos (Gekkota) consisting of 43 described species in six genera. They occur in Asia, Africa and North America. Eublepharid geckos lack adhesive toepads and, unlike other geckos, have movable eyelids, thus commo ...
. The species is indigenous to the extreme southwestern
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
and adjacent northwestern
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
.


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 Greek ἑρπετόν ''herpetón'', meaning "reptile" or "creeping animal") is the branch of zoology concerned with the study of amphibians (including frogs, toads, salamanders, newts, and caecilians (gymnophiona)) and rept ...
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, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
in the United States and
Baja California Baja California (; 'Lower California'), officially the Free and Sovereign State of Baja California ( es, Estado Libre y Soberano de Baja California), is a state in Mexico. It is the northernmost and westernmost of the 32 federal entities of Mex ...
and
Baja California Sur Baja California Sur (; 'South Lower California'), officially the Free and Sovereign State of Baja California Sur ( es, Estado Libre y Soberano de Baja California Sur), is the least populated state and the 31st admitted state of the 32 federal ent ...
in Mexico.


Habitat

The preferred natural
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 ''C. switaki'' are
desert A desert is a barren area of landscape where little precipitation occurs and, consequently, living conditions are hostile for plant and animal life. The lack of vegetation exposes the unprotected surface of the ground to denudation. About on ...
and rocky areas.


Taxonomy

'' Coleonyx gypsicolus'', which 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 ...
to Isla San Marcos in
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
, is sometimes considered a
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
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 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


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