Calliostoma corbis Dall, 1889 (original combination) Mirachelus corbis is a species of sea snail, a marine gastropod mollusc in the family Chilodontaidae.

The small, white shell shows a glassy minute apparently dextral nucleus and about six whorls.

The spiral sculpture consists of one very strong rib on the periphery, a slightly weaker one near the suture, and another (which is rarely absent) midway between them.

The transverse sculpture of strong thin oblique radii (27–30 on the last whorl) follow the lines of growth, reticulating the spirals (on crossing which they become slightly nodose) and forming deep squarish pits, which are elongated in the adult by the crowding of the radii toward the mouth.

The suture appears channelled, as the whorl falls short of the peripheral rib which overhangs it, but is not really so.