Most of the Collared lizards which hobbyists are keeping and breeding are various species/sub-species of the Eastern Collared Lizard which will average in size 12-14 inches in length, some will get larger.
What's called the "Eastern collared lizard" IS its own species (Crotaphytus collaris) and there are no longer any recognised sub-species in Crotaphytus. We sometimes refer to former subspecies (such as C. c. auriceps) since it makes a good 'shorthand' for lizards with a particular color pattern from a certain area.
DC
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