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The Texas horned lizard is the largest-bodied and most widely distributed of the roughly 21 species of horned lizards in the western United States and Mexico. The Texas horned lizard exhibits sexual dimorphism, with the females being larger with a snout-vent length of around 5 in (13 cm), whereas the males reach around 3.7 in (9.4 cm).
Description. The regal horned lizard is a small, flat lizard about the size of the palm of a human's hand. It has spikes all around the lateral surface of its body. It is 3–4 in (117 mm) in length from nose to tail as a full adult, and pale grey to yellow-brown or reddish in color, topped with dark blotches alongside the body and back.
Linnaeus, 1758. Phrynosoma, whose members are known as the horned lizards, horny toads, or horntoads, is a genus of North American lizards and the type genus of the family Phrynosomatidae. Their common names refer directly to their horns or to their flattened, rounded bodies, and blunt snouts. The generic name Phrynosoma means "toad-bodied".
Desert horned lizard Ring-necked snake Long-nosed leopard lizard Desert tortoise Many-lined skink Speckled rattlesnake. Blackneck garter snake (Thamnophis cyrtopsis) [236] Coachwhip (Masticophis flagellum) [237] Common chuckwalla (Sauromalus ater) [238] Common kingsnake (Lampropeltis getula) [239] Common side-blotched lizard (Uta stansburiana ...
Cerastes cerastes, commonly known as the Saharan horned viper [4] or the desert horned viper, [5] is a venomous species of viper native to the deserts of Northern Africa and parts of the Arabian Peninsula and Levant. It is often easily recognized by the presence of a pair of supraocular "horns", although hornless individuals do occur. [4]
The lizards may be found at elevations up to 4,500 ft (1,370 m). [5] Primarily herbivorous, chuckwallas feed on leaves, fruit, and flowers of annuals and perennial plants; insects represent a supplementary prey. [5] The lizards are said to prefer yellow flowers, such as those of the brittlebush (Encelia farinosa). [5]
Crotalus cerastes, known as the sidewinder, horned rattlesnake or sidewinder rattlesnake, [3] is a pit viper species belonging to the genus Crotalus (the rattlesnakes), and is found in the desert regions of the Southwestern United States and northwestern Mexico. Like all other pit vipers, it is venomous. Three subspecies are currently recognized.
Phrynosoma (Doliosaurus) goodei. — Crother, 2012. The Sonoran horned lizard ( Phrynosoma goodei), also known commonly as Goode's desert horned lizard and el camaleón de Sonora in Mexican Spanish, is a species of horned lizard in the family Phrynosomatidae. The species is native to Arizona in the United States and to Sonora in Mexico.