Subgenus (Thestyleda) T. Iredale, 1929

(3-6-1-0-3-8-0-4-7-0-0-0-0)
Ref. Abbott, 1974 p 415

hamata (P. P. Carpenter, 1864)
(3-6-1-0-3-8-0-4-7-1-0-0-0)
Hamate Nut Clam
Syn. Nuculana (Nuculana) limata (W. H. Dall, 1916)
Ref. Abbott, 1974 p 415 d

ramsayi E. A. Smith, 1885 [T]
(3-6-1-0-3-8-0-4-7-2-0-0-0)
Ref. Abbott, 1974 p 415