Subgenus (Glycymeris) E. M. da Costa, 1778

(3-7-3-0-4-1-2-16-3-0-0-0-0)
Ref. Keen, 1971 p 55

? albolineata (C. E. Lischke, 1872)
(3-7-3-0-4-1-2-16-3-1-0-0-0)
White-lined Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

assimilis G. B. Sowerby, 1833
(3-7-3-0-4-1-2-16-3-2-0-0-0)
[=Glycymeris (Axinactis) inaequalis (G. B. Sowerby, 1833)]
Ref. Abbott, 1974 p 427
Abbott & Dance, 1982 p 295

? auriflua (L. A. Reeve, 1843)
(3-7-3-0-4-1-2-16-3-3-0-0-0)
Gold-flowing Bittersweet
Ref. Abbott & Dance, 1982 p 295 c

? australis (J. R. C. Quoy & J. P. Gaimard, 1832)
(3-7-3-0-4-1-2-16-3-4-0-0-0)
Austral Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

bicolor L. A. Reeve, 1843
(3-7-3-0-4-1-2-16-3-5-0-0-0)
[=Glycymeris (Tucetona) multicostata (G. B. Sowereby, 1833)]
Ref. Abbott, 1974 p 427

carinata W. H. Dall, 1898
(3-7-3-0-4-1-2-16-3-6-0-0-0)
[=Glycymeris (Tucetona) pectinata (W. H. Gmelin, 1791)]
Ref. Abbott, 1974 p 427

chemnitzii W. H. Dall, 1909
(3-7-3-0-4-1-2-16-3-7-0-0-0)
[=Glycymeris (Tucetona) multicostata (G. B. Sowerby, 1833)]
Ref. Abbott, 1974 p 427
Keen, 1971 p 57

? clarki (D. Nicol, 1951)
(3-7-3-0-4-1-2-16-3-8-0-0-0)
Clark's Bittersweet
Ref. Abbott & Dance, 1982 p 295 c

corteziana W. H. Dall, 1916
(3-7-3-0-4-1-2-16-3-9-0-0-0)
Cortez Bittersweet
Ref. Abbott, 1974 p 427
Amer. Fish. Soc., 1988 p 24

gigantea (L. A. Reeve, 1843)
(3-7-3-0-4-1-2-16-3-10-0-0-0)
Giant Bittersweet
Ref. Abbott, 1974 p 427
Abbott & Dance, 1982 p 297 c
Keen, 1971 p 55 bw
Lindner, 1977 pl 52 c

glycymeris (C. v. Linne, 1758) [T]
(3-7-3-0-4-1-2-16-3-11-0-0-0)
Dog Cockle, European Bittersweet
Ref. Lindner, 1977 p 226
Syn. Glycymeris (Glycymeris) orbicularis E. M. da Costa, 1778
Ref. Abbott, 1974 p 426
Syn. Glycymeris (Glycymeris) orbiculata T. Pennant
Ref. Abbott & Dance, 1982 p 296 c

keenae G. Willett, 1943
(3-7-3-0-4-1-2-16-3-12-0-0-0)
Ref. Abbott, 1974 p 427

laticostata (J. R. C. Quoy & J. P. Gaimard, 1835)
(3-7-3-0-4-1-2-16-3-13-0-0-0)
Flat-ribbed Bittersweet, Large Dog Cockle
Ref. Abbott & Dance, 1982 p 295 c
Penniket, 1970 p 70 c

lineata L. A. Reeve
(3-7-3-0-4-1-2-16-3-14-0-0-0)
[=Glycymeris (Glycymeris) undata (C. v. Linne, 1758)]
Ref. Abbott, 1974 p 426

lintea A. A. Olsson, 1961
(3-7-3-0-4-1-2-16-3-15-0-0-0)
Ref. Keen, 1971 p 55 bw

maculata (W. J. Broderip, 1832)
(3-7-3-0-4-1-2-16-3-16-0-0-0)
Ref. Abbott, 1974 p 427
Keen, 1971 p 55 bw

migueliana W. H. Dall, 1916
(3-7-3-0-4-1-2-16-3-17-0-0-0)
Ref. Abbott, 1974 p 427

modesta
(3-7-3-0-4-1-2-16-3-18-0-0-0)
Small Dog Cockle
Ref. Penniket, 1970 p 70 c

? muskatensis J. C. Melvill, 1897
(3-7-3-0-4-1-2-16-3-19-0-0-0)
Muscat Bittersweet
Ref. Abbott & Dance, 1982 p 295 c

? obliqua (L. A. Reeve, 1843)
(3-7-3-0-4-1-2-16-3-20-0-0-0)
Oblique Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

orbicularis E. M. da Costa, 1778
(3-7-3-0-4-1-2-16-3-21-0-0-0)
[=Glycymeris (Glycymeris) glycymeris (C. v. Linne, 1758)]
Ref. Abbott, 1974 p 426

orbiculata T. Pennant
(3-7-3-0-4-1-2-16-3-22-0-0-0)
[=Glycymeris (Glycymeris) glycymeris (C. v. Linne, 1758)]
Ref. Abbott & Dance, 1982 p 296

? pectunculus (C. v. Linne, 1758)
(3-7-3-0-4-1-2-16-3-23-0-0-0)
Comb Bittersweet
Ref. Abbott & Dance, 1982 p 295 c

pennacea (J. B. P. A. de Lamarck, 1819)
(3-7-3-0-4-1-2-16-3-24-0-0-0)
Pennaceus Bittersweet
Ref. Abbott & Dance, 1982 p 296 c
[=Glycymeris (Glycymerella) decussata (C. v. Linne, 1758)]
Ref. Abbott, 1974 p 426

? pilosa (C. v. Linne, 1767)
(3-7-3-0-4-1-2-16-3-25-0-0-0)
Pilose Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

profunda (W. H. Dall, 1878)
(3-7-3-0-4-1-2-16-3-26-0-0-0)
Ref. Abbott, 1974 p 427

? radians (J. B. P. A. de Lamarck, 1819)
(3-7-3-0-4-1-2-16-3-27-0-0-0)
Rayed Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

? reevei (C. Mayer, 1868)
(3-7-3-0-4-1-2-16-3-28-0-0-0)
Reeve's Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

septentrionalis (A. T. Middendorff, 1849)
(3-7-3-0-4-1-2-16-3-29-0-0-0)
Northern Bittersweet
Ref. Abbott, 1974 p 427
Amer. Fish. Soc., 1988 p 25

? sericata (L. A. Reeve, 1843)
(3-7-3-0-4-1-2-16-3-30-0-0-0)
Silky Bittersweet
Ref. Abbott & Dance, 1982 p 295 c

spectralis D. Nicol, 1952
(3-7-3-0-4-1-2-16-3-31-0-0-0)
Spectral Bittersweet
Ref. Abbott, 1974 p 426
Amer. Fish. Soc., 1988 p 25

subobsoleta (P. P. Carpenter, 1864)
(3-7-3-0-4-1-2-16-3-32-0-0-0)
California Bittersweet, West Coast Bittersweet
Ref. Abbott, 1974 p 427 bw
Amer. Fish. Soc., 1988 p 25

undata (C. v. Linne, 1758)
(3-7-3-0-4-1-2-16-3-33-0-0-0)
Atlantic Bittersweet, Wavy Bittersweet
Ref. Abbott & Dance, 1982 p 296 c
Amer. Fish. Soc., 1988 p 25
Syn. Glycymeris (Glycymeris) lineata L. A. Reeve
Ref. Abbott, 1974 p 426 bw

? vestita (W. Dunker, 1877)
(3-7-3-0-4-1-2-16-3-34-0-0-0)
Clothed Bittersweet
Ref. Abbott & Dance, 1982 p 296 c

violascens J. B. P. A. de Lamarck, 1819
(3-7-3-0-4-1-2-16-3-35-0-0-0)
Ref. Lindner, 1977 pl 52 c

violacescens (J. B. P. A. de Lamarck, 1819)
(3-7-3-0-4-1-2-16-3-36-0-0-0)
Violet Bittersweet
Ref. Abbott & Dance, 1982 p 296 c