chlamydosaurus kingii
Webster's Dictionary (GCIDE)
frilled \frilled\ (fr[i^]ld), a. Furnished with a frill or frills. [1913 Webster]
Frilled lizard (Zool.), a large Australian lizard (Chlamydosaurus Kingii) about three feet long, which has a large, erectile frill on each side of the neck. [1913 Webster]