Texas horned lizard blunt snout, which give it a decidedly batrachian appearance. "Phrynosoma" literally means "toad-bodied" and "cornutum" means "horned". The lizard's horns are extensions of its cranium and contain true bone. The Texas horned lizard is the largest-bodied and most widely distributed of the roughly 14 species of horned lizards in the western United States and Mexico. The average Texas horned lizard is in snout-vent length, but the upper boundary for males is and for females it is . Although its coloration generally serves as camouflage against predation, when threatened by a predator, a horned lizard puffs up and appears very fat,
Persian horned viper are 134-163 ventral scales and 35-50 paired subcaudals. The tail is short. Persian horned viper, false horned viper, Persian horned desert viper, eye-horned viper. "P. persicus" is found in the Sinai of Egypt, Israel, Jordan, northern Saudi Arabia, the mountains of Oman, northern and northwestern Iraq, possibly southern Syria, extreme southeastern Turkey, northwestern Azerbaijan, Iran, and Pakistan to the borders of Afghanistan. The type locality is listed as ""Perse"" (= Persia). These snakes are generally rather slow-moving and may employ various methods of locomotion, including sidewinding, serpentine, and rectilinear. These snakes are almost totally nocturnal, only being seen during the