Subgenus (Nesopeplum) T. Iredale, 1929
(3-7-6-2-2-1-4-T1-21-2-0-0-0-0) Syn. (Dendopecten) L. G. Hertlein, 1936; (Notochlamys) B. C. Cotton, 1930 Ref. Vaught, 1989 p 119