Callyodon microrhinus (Bleeker, 1854) Callyodon ultramarinus Jordan & Seale, 1906 Pseudoscarus microrhinos (Bleeker, 1854) Scarus microrhinos Bleeker, 1854 Chlorurus microrhinos, the blunt-head parrotfish or steephead parrotfish, is a species of marine ray-finned fish, a parrotfish from the family Scaridae.

[1] This species occurs in schools that forage over lagoons and seaward reefs, which are rich in algae growth.

[6] These parrotfish mainly feed on benthic algae and material scraped from corals, leaving exposed reef substrate.

The tail is crescent-shaped in large terminal males, while in juveniles it is rounded.

[7] Large males develop a prominent forehead (hence the common name of blunt-head parrotfishes).