Isla San Lorenzo Sur, is an

island An island (or isle) is an isolated piece of habitat that is surrounded by a dramatically different habitat, such as water. Very small islands such as emergent land features on atolls can be called islets, skerries, cays or keys. An island ...

in the

Gulf of California 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 Ca ...

east of the Baja California Peninsula. The island is uninhabited and is part of the

Mexicali Municipality Mexicali Municipality is a municipality (Mexico), municipality ( es, link=no, municipio) in the Mexican States of Mexico, state of Baja California. Its municipal seat ( es, link=no, cabecera municipal) is located in the city of Mexicali. As of 20 ...

Isla San Lorenzo Norte Isla San Lorenzo Norte is an island in the Gulf of California east of the Baja California Peninsula. The island is uninhabited and is part of the Mexicali Municipality. The much larger Isla San Lorenzo Sur is located immediately southeast of Isl ...

is located immediately northwest of Isla San Lorenzo Sur.

Biology

Isla San Lorenzo Sur has seven species of

reptile Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians ( ...

s: '' Aspidoscelis cana'' (Isla Salsipuedes whiptail), ''

Crotalus lorenzoensis :''Common names: San Lorenzo Island rattlesnake.'' ''Crotalus lorenzoensis'' is a species of pitviper, a venomous snake in the subfamily Crotalinae of the family Viperidae. The species is endemic to San Lorenzo Sur Island, Mexico. Description ...

'' (San Lorenzo Island diamond rattlesnake), '' Hypsiglena ochrorhyncha'' (coast night snake), ''

Lampropeltis californiae The California kingsnake (''Lampropeltis californiae'') is a nonvenomous colubrid snake endemic to the western United States and northern Mexico, and is found in a variety of habitats. Due to ease of care and a wide range of color variations, the ...

'' (California kingsnake), ''

Phyllodactylus nocticolus The peninsula leaf-toed gecko (''Phyllodactylus nocticolus'') is a medium-sized gecko. It is found in southern California (USA) and Baja California (Mexico), including many islands in Gulf of California as well as Islas Magdalena and Santa Marg ...

'' (peninsular leaf-toed gecko), ''

Sauromalus hispidus The Angel Island chuckwalla (''Sauromalus hispidus''), also known as the spiny chuckwalla, is a species of chuckwalla lizard belonging to the family Iguanidae endemic to Isla Ángel de la Guarda (Guardian Angel Island) in the Gulf of California. T ...

'' (spiny chuckwalla), and '' Uta antiqua'' (San Lorenzo Islands side-blotched lizard). Of these, ''Crotalus lorenzoensis'' 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 the island—it is found nowhere else. It is abundant on the island.

References

* Islands of Mexicali Municipality Islands of Baja California Islands of the Gulf of California Uninhabited islands of Mexico {{BajaCalifornia-geo-stub