Subgenus (Cooperella) P. P. Carpenter, 1864

(3-4-4-0-26-1-0-1-1-0-0-0-0)
Ref. Bernard, 1983 p 56

atlantica H. A. Rehder, 1943
(3-4-4-0-26-1-0-1-1-1-0-0-0)
Atlantic Cooperclam;, Atlantic Cooper's Clam
Ref. Abbott, 1974 p 536 bw
Amer. Fish. Soc., 1988 p 45
Keen, 1971 p 199

panamensis A. A. Olsson, 1961
(3-4-4-0-26-1-0-1-1-2-0-0-0)
Ref. Bernard, 1983 p 56
Keen, 1971 p 199 bw

subdiaphana (P. P. Carpenter, 1864) [T]
(3-4-4-0-26-1-0-1-1-3-0-0-0)
Shiny Cooperclam, Shiny Cooper's Clam
Ref. Amer. Fish. Soc., 1988 p 45
Syn. Oedalia (Cooperella) scintillaeformis P. P. Carpenter, 1864
Ref. Abbott, 1974 p 536 bw
Keen, 1971 p 199 bw d
Syn. Oedalia (Cooperella) scintillaeformis P. P. Carpenter, 1864;
Oedalia (Oedalia) subdiaphana P. P. Carpenter, 1864
Ref. Bernard, 1983 p 56