Plesiotrochus
Plesiotrochus is a genus of sea snails, marine gastropod molluscs in the family Plesiotrochidae.
Plesiotrochus was originally placed in the superfamily Cerithioidea but was subsequently transferred to the superfamily Campaniloidea by Healy.
Description
The shell have an elongate, conical shape. Their length of rather small. The imperforate whorls are flat to concave. The subrhomboidal aperture is smooth within and prolonged by a short siphonal canal. The outer lip is subrostrate in the middle. The columella and the siphonal canal are twisted. The sculpture shows conspicuous ribs with varices or just spirals. The operculum is eccentric.Distribution
The species occur in the Indo-Pacific.Species
Species within the genus Plesiotrochus include:Plesiotrochus acutangulus Plesiotrochus calliostomoides Plesiotrochus crinitus Thiele, 1930- † Plesiotrochus fallax Grateloup 1832 Plesiotrochus fischeri E. A. Smith, 1909Plesiotrochus luteus Plesiotrochus monachus Plesiotrochus pagodiformis Hedley, 1907Plesiotrochus paucicostatus Kilburn, 1975Plesiotrochus penetricinctus Plesiotrochus souverbianus Fischer, 1878
- † Plesiotrochus stephanense Cossmann and Peyrot 1922