Subgenus (Florimetis) A. A. Olsson & Harbison, 1953

(3-4-4-0-24-14-1-39-2-0-0-0-0)
Ref. Abbott, 1974 p 508
[see also as Genus]

cognata (H. A. Pilsbry & E. G. Vanatta, 1902)
(3-4-4-0-24-14-1-39-2-1-0-0-0)
Ref. Abbott, 1974 p 509

clarki (J. W. Durham, 1950)
(3-4-4-0-24-14-1-39-2-1-1-0-0)
Ref. Abbott, 1974 p 509

cognata (H. A. Pilsbry & E. G. Vanatta, 1902)
(3-4-4-0-24-14-1-39-2-1-2-0-0)

intastriata (T. Say, 1827) [T]
(3-4-4-0-24-14-1-39-2-2-0-0-0)
Atlantic Grooved Macoma
Ref. Abbott, 1974 p 508 c
Abbott & Dance, 1982 p 344 c

obesa (G. P. Deshayes, 1855)
(3-4-4-0-24-14-1-39-2-3-0-0-0)
Pacific Grooved Macoma
Ref. Abbott & Dance, 1982 p 344 c
Syn. Psammotreta (Psammotreta) biangulata (P. P. Carpenter, 1856)
Ref. Abbott, 1974 p 508