Coelotrochus

Coelotrochus is a genus of small sea snails, marine gastropod mollusks in the family Trochidae, the top snails.

Description
The false umbilicus is very deep and narrow, penetrating deeper than the columella, which is inserted upon its edge, not in the centre of the axis.

Distribution
This marine genus is endemic to New Zealand.

Species
Species within the genus Coelotrochus include:
 * † Coelotrochus avarus (Suter, 1917)
 * † Coelotrochus bibaphus (Bartrum & Powell, 1928)
 * † Coelotrochus browni (C. A. Fleming, 1943)
 * Coelotrochus carinatus (B. A. Marshall, 1998)
 * Coelotrochus carmesinus (Webster, 1908)
 * Coelotrochus chathamensis (Hutton, 1873)
 * Coelotrochus davegibbsi (B. A. Marshall, 1998)
 * † Coelotrochus fossilis (Finlay, 1926)
 * † Coelotrochus gracilis (Laws, 1936)
 * Coelotrochus oppressus (B. A. Marshall, 1998)
 * Coelotrochus polychromus (B. A. Marshall, 1998)
 * Coelotrochus rex (B. A. Marshall, 1998)
 * Coelotrochus tiaratus (Quoy & Gaimard, 1834)
 * Coelotrochus viridis (Gmelin, 1791)