Horned lizards are a genus (Phrynosoma) of lizards which are the type genus of the family Phrynosomatidae. The horned lizard is popularly called a  horned toad ,  horny toad  or  horned frog , yet it is neither a toad nor a frog. The popular names come from the lizard's rounded body and blunt snout, which make it resemble a toad or frog (Phrynosoma literally means toad-bodied).