| Western patch-nosed snake | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Squamata |
| Suborder: | Serpentes |
| Family: | Colubridae |
| Genus: | Salvadora |
| Species: | S. hexalepis |
| Binomial name | |
| Salvadora hexalepis (Cope, 1866) | |
| Synonyms | |
Salvadora hexalepis, the western patch-nosed snake, is a species of non-venomous colubrid snake, which is endemic to the southwestern United States and northern Mexico. [5]
It is found in the southwestern United States in the states of Arizona, southern California, Nevada, southern New Mexico, and southwestern Texas. It is also found in northern Mexico in the Mexican states of Baja California, Baja California Sur, Chihuahua, Sinaloa, and Sonora. [2]
The following four subspecies are recognized: [2]
Adults of Salvadora hexalepis are, on average, 20-46 inches (51–117 cm) in total length; [6] the record total length is 58 in (150 cm). [7]
They have a distinctive, thick scale curved back over the top of the snout, and free at the edges. [7]
All subspecies are yellowish with blackish lateral stripes in various arrangements. [8]
The dorsal scales are smooth, and the anal plate is divided. [7]
The western patch-nosed snake inhabits arid deserts in its area. It feeds upon lizards, snakes, reptile eggs, and small rodents. [9]
4-10 eggs are laid during spring or early summer and hatch in August through September. [6]
The zebra-tailed lizard is a species of lizard in the family Phrynosomatidae. The species is native to the Southwestern United States and adjacent northwestern Mexico. There are nine recognized subspecies.
The desert rosy boa is a species of snake in the family Boidae. The desert rosy boa is native to the American Southwest and Baja California and Sonora in Mexico. The desert rosy boa is one of four species in the boa family native to the continental United States, the other three being the coastal rosy boa and the two species of rubber boas (Charina).
Pituophis catenifer is a species of nonvenomous colubrid snake endemic to North America. Nine subspecies are currently recognized, including the nominotypical subspecies, Pituophis catenifer catenifer, described here. This snake is often mistaken for the prairie rattlesnake, but can be easily distinguished from a rattlesnake by the lack of black and white banding on its tail and by the shape of its head, which is narrower than a rattlesnake's.
Arizona elegans is a species of medium-sized colubrid snake commonly referred to as the glossy snake or the faded snake, which is endemic to the southwestern United States and Mexico. It has several subspecies. Some have recommended that A. elegans occidentalis be granted full species status.
Hypsiglena is a genus of small, rear-fanged, colubrid snakes commonly referred to as night snakes. The genus consists of nine species, and subspecies have been maintained pending further investigation.
The long-nosed snake is a species of nonvenomous snake in the family Colubridae. The species is endemic to North America. It has two recognized subspecies. The other species in the genus were previously considered subspecies.
Masticophis is a genus of colubrid snakes, commonly referred to as whip snakes or coachwhips, which are endemic to the Americas. They are characterized by having a long, thin body and are not dangerous to humans.
Salvadora is a genus of colubrid snakes commonly called patchnose snakes or patch-nosed snakes, which are endemic to the western United States and Mexico. They are characterized by having a distinctive scale on the tip of the snout.
Pituophis catenifer affinis, commonly known as the Sonoran gopher snake, is a nonvenomous subspecies of colubrid snake that is endemic to the southwestern United States. It is one of six recognized subspecies of the gopher snake, Pituophis catenifer.
Crotalus willardi is a venomous pit viper species found in the southwestern United States and Mexico. This snake is found mainly in the "sky island" region. The IUCN reports this snake's conservation status as being of Least Concern. It is the official state reptile of Arizona.
Crotalus ruber is a venomous pit viper species found in southwestern California in the United States and Baja California in Mexico. Three subspecies are currently recognized, including the nominate subspecies described here.
Holbrookia maculata, commonly known as the lesser earless lizard, is a species of lizard in the family Phrynosomatidae. The species is native to the southwestern and central United States and northern Mexico. There are eight recognized subspecies.
Crotalus lepidus klauberi is a venomous pitviper subspecies endemic to the southwestern United States and adjacent northern Mexico.
Crotalus oreganus, commonly known as the (northern) Pacific rattlesnake, is a venomous pit viper species found in western North America from the Baja California Peninsula to the southern interior of British Columbia.
The western banded gecko is a species of lizard in the family Eublepharidae. The species is native to the southwestern United States and adjacent northwestern Mexico. Five subspecies are recognized.
The California whipsnake, also known as the striped racer, is a colubrid snake found in habitats of the coast, desert, and foothills of California.
Switak's banded gecko, also commonly known as the barefoot banded gecko, the barefoot gecko, and Switak's barefoot gecko, is a species of lizard in the family Eublepharidae. The species is indigenous to the extreme southwestern United States and adjacent northwestern Mexico.
Senticolis is a genus of nonvenomous snake in the family Colubridae. The genus Senticolis is monotypic, containing the sole species Senticolis triaspis, also known as the green rat snake. The species is endemic to Central America, Mexico, southern Arizona, and southern New Mexico.
Isla San Jerónimo, is an island in the Pacific Ocean on the west side of the Baja California Peninsula. The island is part of the large Ensenada Municipality and accessed from Punta Baja near the community of El Rosario, Baja California.
