Crotaphytus is a genus of lizards commonly known as collared lizards. They are a genus of small to medium-sized predators indigenous to the American southwest, Baja peninsula, and Mexico. They can be as small as 8" or as long as 14″ (20-36cm), and are characterized by distinct bands of black or brown around their neck, thus their common name. Species and subspecies The following species and subspecies are recognized as being valid. Crotaphytus antiquus – venerable collared lizard Crotaphytus bicinctores – Great Basin collared lizard or desert collared lizard Crotaphytus collaris – common collared lizard Crotaphytus collaris auriceps – yellow-headed collared lizard Crotaphytus collaris baileyi – western collared lizard Crotaphytus collaris collaris – eastern collared lizard Crotaphytus collaris fuscus – Chihuahuan collared lizard Crotaphytus collaris melanomaculatus – black-spotted collared lizard Crotaphytus dickersonae – Sonoran collared lizard Crotaphytus grismeri – Grismer's collared lizard Crotaphytus insularis – eastern collared lizard Crotaphytus nebrius – Sonoran collared lizard Crotaphytus reticulatus – reticulated collared lizard Crotaphytus vestigium – Baja California collared lizard Nota bene: A binomial authority in parentheses or a trinomial authority in parentheses indicates that the species or subspecies was originally described in a genus other than Crotaphytus. Symbol In 1969, Oklahoma designated its first state reptile when it chose the collared lizard. References Citations Bibliography Holbrook JE (1842). North American Herpetology; or, A Description of the Reptiles Inhabiting the United States. Vol. II. (Second edition). Philadelphia: J. Dobson. 142 pp. (Crotaphytus, new genus, p. 79). External links Photos of genus members Crotaphytus Lizard genera Taxa named by John Edwards Holbrook