Subgenus (Thracia) ex W. E. Leach, ms, G. B. Sowerby, 1823

(3-2-4-0-4-3-0-38-3-0-0-0-0)
Ref. Bernard, 1979 p 61
Bernard, 1983 p 64

adamsi N. MacGinitie, 1959
(3-2-4-0-4-3-0-38-3-1-0-0-0)
Adams Thracia
Ref. Amer. Fish. Soc., 1988 p 48

anconensis A. A. Olsson, 1961
(3-2-4-0-4-3-0-38-3-2-0-0-0)
Ref. Bernard, 1983 p 64

carnea O. A. L. Morch, 1860
(3-2-4-0-4-3-0-38-3-3-0-0-0)
[=Macoma (Psammacoma) siliqua (C. B. Adams, 1852)]
Ref. Keen, 1971 p 229

colpoica W. H. Dall, 1915
(3-2-4-0-4-3-0-38-3-4-0-0-0)
Ref. Bernard, 1983 p 64

conradi J. P. Couthouy, 1838
(3-2-4-0-4-3-0-38-3-5-0-0-0)
Conrad Thracia, Conrad's Thracia
Size 3"-4" long
Ref. Abbott, 1974 p 558 bw
Abbott & Dance, 1982 p 374 c
Amer. Fish. Soc., 1988 p 48

corbuloides H. M. D. de Blainville, 1824
(3-2-4-0-4-3-0-38-3-6-0-0-0)
Corbula Thracia, Corbuloid Thracia
Size 2" long
Ref. Abbott & Dance, 1982 p 374 c
Amer. Fish. Soc., 1988 p 48
Syn. ? Thracia morrisoni R. Petit, 1964, Thracia philippiana Nordsieck, 1969
Ref. Abbott, 1974 p 559

couthouyi W. Stimpson, 1851
(3-2-4-0-4-3-0-38-3-7-0-0-0)
[=Thracia (Ixartia) myopsis H. P. C. Moller, 1842]
Ref. Bernard, 1983 p 64

curta authors, not T. A. Conrad, 1837
(3-2-4-0-4-3-0-38-3-8-0-0-0)
[=Thracia (Thracia) trapezoides T. A. Conrad, 1849]
Ref. Bernard, 1983 p 64

diegensis W. H. Dall, 1915
(3-2-4-0-4-3-0-38-3-9-0-0-0)
[=Asthenothaerus villosior P. P. Carpenter, 1864]
Ref. Abbott, 1974 p 560
Bernard, 1983 p 64

distorta G. Montagu, 1808
(3-2-4-0-4-3-0-38-3-10-0-0-0)
Distorted Thracia
Ref. Abbott, 1974 p 559

magnifica authors [not J. H. Jonas, 1850]
(3-2-4-0-4-3-0-38-3-11-0-0-0)
[=Cyathodonta undulata T. A. Conrad, 1849]
Ref. Bernard, 1983 p 64

morrisoni R. E. Petit, 1964
(3-2-4-0-4-3-0-38-3-12-0-0-0)
Morrison Thracia, Morrison's Thracia
Size 0.75" long
Ref. Abbott, 1974 p 559
Amer. Fish. Soc., 1988 p 48
[?=Thracia corbuloides H. M. D. Blainville, 1824
Ref. Abbott, 1974 p 559

myopsis ex H. Beck, ms, H. P. C. Moller, 1842
(3-2-4-0-4-3-0-38-3-13-0-0-0)
Arctic Thracia
Ref. Amer. Fish. Soc., 1988 p 48
Syn. Thracia (Thracia) truncata typica G. O. Sars, 1878
Ref. Bernard, 1979 p 61

nitida A. E. Verrill, 1884
(3-2-4-0-4-3-0-38-3-14-0-0-0)
Ref. Abbott, 1974 p 559

phaseolina J. B. P. A. de Lamarck, 1822
(3-2-4-0-4-3-0-38-3-15-0-0-0)
Kidneybean Thracia
Ref. Abbott, 1974 p 559
Amer. Fish. Soc., 1988 p 48

philippiana F. Nordsieck, 1969
(3-2-4-0-4-3-0-38-3-16-0-0-0)
[=Thracia corbuloides H. M. D. Blainville, 1824
Ref. Abbott, 1974 p 559

plicata authors [not G. P. Deshayes, 1832]
(3-2-4-0-4-3-0-38-3-17-0-0-0)
[=Cyathodonta dubiosa W. H. Dall, 1915]
[=Cyathodonta undulata T. A. Conrad, 1849]
Ref. Bernard, 1983 p 64

? pubescens (R. Pulteney, 1799) [T]
(3-2-4-0-4-3-0-38-3-18-0-0-0)
Pubescent Thracia
Size 2.3" long
Ref. Abbott & Dance, 1982 p 374 c

rugosa J. B. P. A. de Lamarck, 1818
(3-2-4-0-4-3-0-38-3-19-0-0-0)
Rugose Thracia
Ref. Abbott, 1974 p 559
Amer. Fish. Soc., 1988 p 48

schenki N. M. Tegland, 1933
(3-2-4-0-4-3-0-38-3-20-0-0-0)
[?=Thracia trapezoides T. A. Conrad, 1849]
Ref. Bernard, 1983 p 64

septentrionalis J. G. Jeffreys, 1872
(3-2-4-0-4-3-0-38-3-21-0-0-0)
Northern Thracia
Ref. Amer. Fish. Soc., 1988 p 48
Syn. Thracia (Thracia) truncata J. W. Mighels & Adams, 1842, not T. Brown, 1827
Ref. Abbott, 1974 p 559
Wagner, 1984 p 75 bw

squamosa P. P. Carpenter, 1856
(3-2-4-0-4-3-0-38-3-22-0-0-0)
Ref. Bernard, 1983 p 64

stimpsoni W. H. Dall, 1886
(3-2-4-0-4-3-0-38-3-23-0-0-0)
Stimpson Thracia
Ref. Abbott, 1974 p 559
Amer. Fish. Soc., 1988 p 48

trapezoides T. A. Conrad, 1849
(3-2-4-0-4-3-0-38-3-24-0-0-0)
Common Pacific Thracia, Trapezoid Thracia
Ref. Abbott, 1974 p 558 bw
Amer. Fish. Soc., 1988 p 48
Syn. Thracia (Thracia) curta authors, not T. A. Conrad, 1837;
? Thracia (Thracia) schenki N. M. Tegland, 1933
Ref. Bernard, 1983 p 64

truncata G. O. Sars, 1878 [not J. W. Mighels & Adams, 1842 or T. Brown, 1844]
(3-2-4-0-4-3-0-38-3-25-0-0-0)
[=Thracia (Ixartia) myopsis H. P. C. Moller, 1842]
Ref. Bernard, 1983 p 64
[=Thracia (Thracia) septentrionalis J. G. Jeffreys, 1872]
Ref. Abbott, 1974 p 559
Wagner, 1984 p 75

devexa G. O. Sars, 1878
(3-2-4-0-4-3-0-38-3-25-1-0-0)
[=Thracia (Ixartia) devexa G. O. Sars, 1878]
Ref. Bernard, 1979 p 61
Bernard, 1983 p 64
Wagner, 1984 p 74

typica G. O. Sars, 1878
(3-2-4-0-4-3-0-38-3-25-2-0-0)
[=Thracia (Ixartia) myopsis ex H. Beck, ms, H. P. C. Moller, 1842]
Ref. Bernard, 1979 p 61