Ciclopecten, Seguenza, 1877

Dijkstra, Henk H. & Maestrati, Philippe, 2008, New species and new records of deep-water Pectinoidea (Bivalvia: Propeamussiidae, Entoliidae and Pectinidae) from the South Pacific, Mémoires du Muséum national d'Histoire naturelle 196, pp. 77-114 : 102

Genus CICLOPECTEN Seguenza, 1877

Ciclopecten Seguenza, 1877: 362 . Type species (by original designation): Ciclopecten peloritanus Seguenza, 1877 ; Pliocene, Italy.

DIAGNOSIS. — Pectinidae with prominent commarginal undulations, radial and commarginal macrosculpture, antimarginal microsculpture, posterior auricles continuous with shell disc, anterior auricle of right valve demarcated from shell disc, a broad byssal fasciole, and a functional ctenolium well-developed.

REMARKS. — Coan et al. (2000: 228) synonymized Ciclopecten with Hyalopecten , based on their similar commarginal undulations and reticulate sculpture. Dijkstra & Goud (2002: 47) treated the two as distinct genera. Ciclopecten has antimarginal microsculpture and the posterior auricles are continuous with the shell disc. Hyalopecten always lacks antimarginal microsculpture and the posterior auricles terminate in a point.