''Sauromalus slevini'', also known as the Monserrat chuckwalla or Slevin's chuckwalla, 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 ...

chuckwalla Chuckwallas are lizards found primarily in arid regions of the southwestern United States and northern Mexico. Some are found on coastal islands. The six species of chuckwallas are all placed within the genus ''Sauromalus''; they are part of t ...

belonging to the family

Iguanidae The Iguanidae is a family of lizards composed of the iguanas, chuckwallas, and their prehistoric relatives, including the widespread green iguana. Taxonomy Iguanidae is thought to be the sister group to the collared lizards (family Crotaph ...

. ''S. slevini'' is native to three small islands in the

Sea of Cortés The Gulf of California ( es, Golfo de California), also known as the Sea of Cortés (''Mar de Cortés'') or Sea of Cortez, or less commonly as the Vermilion Sea (''Mar Bermejo''), is a marginal sea of the Pacific Ocean that separates the Baja C ...

Taxonomy and etymology

The

generic Generic or generics may refer to: In business * Generic term, a common name used for a range or class of similar things not protected by trademark * Generic brand, a brand for a product that does not have an associated brand or trademark, other ...

name, ''Sauromalus'', is said to be a combination of two

ancient Greek Ancient Greek includes the forms of the Greek language used in ancient Greece and the ancient world from around 1500 BC to 300 BC. It is often roughly divided into the following periods: Mycenaean Greek (), Dark Ages (), the Archaic peri ...

words: ''sauros'' meaning "lizard" and ''omalus'' meaning "flat". The proper ancient Greek word for "flat" is however ''homalos'' (ὁμαλός) or ''homalēs'' (ὁμαλής). Its

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 ...

, ''slevini'', is a

latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power of the ...

ized form of the surname of American zoologist

Joseph Richard Slevin Joseph Richard Slevin (September 13, 1881 – February 17, 1957) was an American herpetologist and the second curator of herpetology at the California Academy of Sciences, with which he was affiliated for over 50 years. He collected reptile and am ...

(1881–1957), who was

Curator A curator (from la, cura, meaning "to take care") is a manager or overseer. When working with cultural organizations, a curator is typically a "collections curator" or an "exhibitions curator", and has multifaceted tasks dependent on the parti ...

Herpetology 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 ...

at the

California Academy of Sciences The California Academy of Sciences is a research institute and natural history museum in San Francisco, California, that is among the largest museums of natural history in the world, housing over 46 million specimens. The Academy began in 1853 ...

from 1928 to 1957. The species was first described by American herpetologist

John Van Denburgh John Van Denburgh (August 23, 1872 – October 24, 1924) was an American herpetologist from California (who also used the name Van Denburgh in publications, hence this name is used below). Biography Van Denburgh was born in San Francisco and enr ...

in 1922. Van Denburgh, John (1922). "The Reptiles of Western North America. Volume I. Lizards" and "Volume II. Snakes and Turtles". ''Occasional Papers of the California Academy of Sciences'' 10: 1–612; 613–1028. (''Sauromalus slevini'', new species, p. 97). The common name, "chuckwalla", derives from the

Shoshone The Shoshone or Shoshoni ( or ) are a Native American tribe with four large cultural/linguistic divisions: * Eastern Shoshone: Wyoming * Northern Shoshone: southern Idaho * Western Shoshone: Nevada, northern Utah * Goshute: western Utah, easter ...

word, ''tcaxxwal'', or the

Cahuilla The Cahuilla , also known as ʔívil̃uqaletem or Ivilyuqaletem, are a Native American people of the various tribes of the Cahuilla Nation, living in the inland areas of southern California.Spaniards Spaniards, or Spanish people, are a Romance peoples, Romance ethnic group native to Spain. Within Spain, there are a number of National and regional identity in Spain, national and regional ethnic identities that reflect the country's complex Hist ...

as ''chacahuala''.

Geographic range

''S. slevini'' is found on three islands in the

Isla del Carmen Ciudad del Carmen is a city in the southwest of the Mexican state of Campeche. Ciudad del Carmen is located at on the southwest of Carmen Island, which stands in the Laguna de Términos on the coast of the Gulf of Mexico. , Ciudad del Carmen ha ...

Isla Coronados Isla Coronados, is an island in the Gulf of California east of the Baja California Peninsula in Baja California Sur state, Mexico. The island is uninhabited and is part of the Loreto Municipality. Ecology Reptilian life Isla Coronados has 16 ...

, and Isla Monserrate. www.reptile-database.org. It can be found at altitudes from sea level to .

Conservation status

Due to its restricted range ''S. slevinii'' is a

CITES CITES (shorter name for the Convention on International Trade in Endangered Species of Wild Fauna and Flora, also known as the Washington Convention) is a multilateral treaty to protect endangered plants and animals from the threats of interna ...

protected animal.

Description

''S. slevini'' has the following coloration. The base color on its back is brown or olive green, with a yellow middorsal band, but can be spotted, marbled, or cross-banded with red or darker brown. The head, tail, and limbs are unicolor, and the tail may be faintly cross-banded with darker brown. The ventral surfaces are dull brown, marbled or spotted with dark brown, especially on the throat.

Habitat and diet

The Montserrat chuckwalla prefers dwelling in lava flows and rocky areas with nooks and crannies available for a retreat when threatened. These areas are typically vegetated by

creosote bush ''Larrea tridentata'', called creosote bush and greasewood as a plant, chaparral as a medicinal herb, and ''gobernadora'' (Spanish language, Spanish for "governess") in Mexico, due to its ability to secure more water by inhibiting the growth of n ...

and cholla cacti, which form the staple of its diet as the chuckwalla is primarily

herbivorous A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet. As a result of their plant diet, herbivorous animals typically have mouthpart ...

. The chuckwalla also feeds on leaves, fruit and flowers of

annual Annual may refer to: * Annual publication, periodical publications appearing regularly once per year **Yearbook ** Literary annual * Annual plant * Annual report * Annual giving * Annual, Morocco, a settlement in northeastern Morocco * Annuals (b ...

perennial plant A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

s, and even weeds; insects represent a supplementary prey if eaten at all.

Reproduction

''S. slevini'' 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

{{Taxonbar, from=Q115692 slevini Reptiles of Mexico Fauna of Gulf of California islands Reptiles described in 1922 Taxa named by John Van Denburgh