Snake Species Dinosaur species

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Sonora semiannulata semiannulata - Variable Groundsnake

Sonora semiannulata semiannulata - Variable Groundsnake - snake species | gveli | გველი

Sonora semiannulata semiannulata - Variable Groundsnake

Nonvenomous

Considered harmless to humans. There are shallow grooves on the outer sides of the rear teeth which indicates that this snake may produce a mild venom, but it is not dangerous to humans.

Size

4 - 18 inches long (10 - 46 cm) including hatchlings. Typically 8 - 12 inches.

Appearance

A small snake with a round body, smooth glossy scales, and a head barely wider than the neck. Variable in color and pattern - this snake may be banded, striped, or solid in color. Often several colors and patterns are found in the same location. Some examples of colors and patterns are: banded with black and gray or yellowish with or without reddish saddles along the back on the light bands; solid grayish with a darker head; banded with orange or red and black; banded with pink and gray; reddish-orange above with gray sides; and gray with a thin orange stripe along the back. The underside can be whitish or yellowish with or without dark crossbands.

Behavior

Secretive but not uncommon. Terrestrial, remaining underground in the daytime, surfacing at night or during heavy rains. Sometimes seen on roads at night, often discovered beneath surface debris, especially rocks.

Diet

Eats small invertebrates, including spiders, scorpions, centipedes, crickets, and insect larvae.

Reproduction

Lays eggs from June - August.

Range

In California, occurs from eastern San Diego county east to the Colorado River, north into the Mojave Desert as far west as 29 palms and Barstow, and north along the eastern slopes of the Sierra Nevada Mountains to Nevada. Ranges farther south into Baja California, north into Nevada, Oregon, and Idaho, Utah, New Mexico, Texas, Oklahoma, Colorado, Arkansas, Missouri, and Kansas, and south into Mexico.

Habitat

Inhabits areas with surface cover and some moisture: grassland, riverbottoms, desert flats, ranchland, sand hummocks, open rocky hillsides with loose soil, sandy washes, dry streambeds, and riparian thickets.

Taxonomic Notes

Two subspecies of Sonora semiannulata are recognized since 2000: S. s. semiannulata - Variable Groundsnake, and S. s. taylori - Southern Texas Groundsnake.

 COACHWHIP  Coluber flagellum | Snake Species Hypsiglena (torquata) jani - Texas Nightsnake | Snake Species Salvadora hexalepis hexalepis - Desert Patch-nosed Snake | Snake Species
Trimorphodon lambda - Sonoran Lyresnake | Snake Species Coluber flagellum testaceus - Western Coachwhip | Snake Species Crotalus atrox - Western Diamond-backed Rattlesnake | Snake Species
Pituophis catenifer sayi - Bullsnake | გველი | Snake Species THORNSCRUB HOOK-NOSED SNAKE  <br />   Gyalopion quadrangulare | Snake Species Trimorphodon lyrophanes - California Lyresnake | Snake Species
 TWIN-SPOTTED RATTLESNAKE <br /> Crotalus pricei | Snake Species Diadophis punctatus similis - San Diego Ring-necked Snake | Snake Species Virginia striatula - Rough Earth Snake | Snake Species
Crotalus oreganus helleri - Southern Pacific Rattlesnake | Snake Species Lampropeltis triangulum celaenops - New Mexico Milksnake | Snake Species Thamnophis elegans elegans - Mountain Gartersnake | Snake Species
Thamnophis atratus atratus - Santa Cruz Gartersnake | Snake Species Crotalus stephensi - Panamint Rattlesnake | Snake Species ROCK RATTLESNAKE<br />  Crotalus lepidus | Snake Species
Diadophis punctatus regalis - Regal Ring-necked Snake | Snake Species Charina umbratica - Southern Rubber Boa | Snake Species Crotalus scutulatus scutulatus - Northern Mohave Rattlesnake | Snake Species

Copyright © 2012