NOMENCLATURE, REDESCRIPTION, AND NEW RECORD FROM OKINAWA OF CYMBASOMA-MORII SEKIGUCHI, 1982 (MONSTRILLOIDA)

Haemocera morii Tokioka, 1949 was undiagnosed and thus unavailable. Se kiguchi's description in 1982 of a second female, as Cymbasoma morii, inadvertently validated the species name. Both specimens, from bays in Honshu, Japan, are deemed to be syntypes; Tokioka's is lost but Sekig uchi's is designated the lectotype and redescribed. Several more femal es collected over a fringing reef at Sesoka Island, Okinawa, are also described. Previously overlooked features include: cephalic ornamentat ion, thoracic sensilla, precise antennualar setation, a short medial s eta on the exopod of leg 5, dorsal wrinkles on the genital segment, an d swollen tips of the genital spines. Cymbasoma morii is distinguished from five similar species by various combinations of characters; howe ver, it sufficiently resembles C. longispinosum (Bourne) that subspeci fic rank might be warranted. A literature record of C. longispinosum f rom Kerala, India, possibly represents misidentified C. morii.