Gastrana abildgaardiana (L. Spengler, 1798)
Bathytellina abyssicola (T. Habe, 1958)
Moerella acalypta (FOSSIL) W.H. Dall, 1900 †
Arcopagia acares (FOSSIL) W.P. Woodring, 1982 †
Moerella acloneta (FOSSIL) W.H. Dall, 1900 †
Macoma acolasta W.H. Dall, 1921
Moerella acosmita (FOSSIL) W.H. Dall, 1900 †
Tellina actutangula (FOSSIL) G.P. Deshayes, 1857 †
Tellina acuminata (S.C.T. Hanley, 1843)
Semelangulus adamsi M. Huber, A. Langleit& K. Kreipl, 2015
Pristipagia adamsii (V. Bertin, 1878)
Tellina adenensis E.A. Smith, 1891
Peronidia aduncanosa (FOSSIL) (C.J.S. Hickman, 1969 †)
Eurytellina aequicincta (FOSSIL) E.M. Spieker, 1922 †
Tellinimera aequilateralis (FOSSIL) (Sobetskiy 1982) †
Serratina aequistriata (T. Say, 1824)
Macaliopsis aequizonata (FOSSIL) H.A. Pilsbry& A.A. Olsson, 1941 †
Tellinangulus aethiopicus (K.H.J. Thiele& S.G.A. Jaeckel, 1931)
Macoma affinis (FOSSIL) Nomland †
Angulinides africanus M. Huber, A. Langleit& K. Kreipl, 2015
Tellina agilis (W. Stimpson, 1857)
Moerella agria (FOSSIL) W.H. Dall, 1900 †
Alaona ala (S.C.T. Hanley, 1845)
Tellina alba J.R.C. Quoy & J.P. Gaimard,1834
Macoma albaria (FOSSIL) T.A. Conrad, 1849 †
Tellina albicans J.F. Gmelin, 1791
Tellina albinella (J.B.P.A. Lamarck, 1818)
Tellina albinelloides (FOSSIL) R. Tate, 1887 †
Tellina aldingae (FOSSIL) (N.H. Ludbrook, 1959 †)
Tellina alerta (K.J. Boss, 1964)
Tellina alfredensis P. Bartsch, 1915
Eurytellina alincia (FOSSIL) W.P. Woodring, 1982 †
Bertinella altera (FOSSIL) (G.P. Deshayes, 1857 †)
Eurytellina alternata (T. Say, 1822)
Tellina altissima E.A. Smith, 1906