Yoldiella abyssicola (J. Knudsen, 1970)
Yoldiella abyssorum J. Knudsen, 1970
Portlandia aestuariorum (Mosevich, 1928)
Yoldiella aethiopica (K.H.J. Thiele& S.G.A. Jaeckel, 1931)
Yoldiella alleni M. Huber, 2010
Yoldiella alluaudi (P. Dautzenberg& H. Fischer, 1897)
Yoldia amaninensis (FOSSIL) Simonova †
Yoldiella americana J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldia amygdalea A. Valenciennes, 1846
Scissileda anatina (E.A. Smith, 1896)
Yoldiella annenkovae (G.P. Gorbunov, 1946)
Yoldiella antarctica (K.H.J. Thiele, 1912)
Yoldia antiqua (FOSSIL) Y.B. Gladenkov, 1994 †
Yoldiella araribola N.P. Benaim & R.S. Absalão,2011
Portlandia arctica (Gray, 1824)
Yoldiella ardgowanica (FOSSIL) (Powell, 1935 †)
Yoldiella argentinensis J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldiella artipica J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldia aurata T.C. Lan & Y.C. Lee, 2001
Yoldia bartschi O.A. Scarlato, 1981
Yoldia bella (FOSSIL) Berezovsky, 2015 †
Yoldiella bernardi (P. Dautzenberg& H. Fischer, 1897)
Mirayoldia bersoni (FOSSIL) Pronina, 1973 †
Yoldiella biguttata J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldiella bilanta J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldia biremis (FOSSIL) S. Uozumi, 1957 †
Yoldiella biscayensis J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldiella blanda J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldia bocasensis (FOSSIL) A.A. Olsson, 1922 †
Yoldiella cadizensis L. Hoffman, B. van Heugten& M.S.S. Lavaleye, 2009
Yoldia callista K.J. Bush, 1893
Yoldiella capensis J.A. Allen, A. Sanders& G. Hannah, 1995
Yoldiella capsa (W.H. Dall, 1916)
Adranella casta (A.E. Verrill & K.J. Bush,1898)
Yoldia caudata (FOSSIL) Khomenko, 1973 †