Chrotichthys
Chrotichthys is an extinct genus of prehistoric freshwater ray-finned fish that lived in the Anisian stage of the Middle Triassic epoch. It contains a single species, C. gregarius, known from the Terrigal Formation of New South Wales, Australia.
Initially considered the earliest known representative of the "pholidophorid" fishes, it is now generally considered a perleidiform.