Seguenzia dabfari G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Seguenzia dautzenbergi M.M. Schepman, 1909
Asthelys depressa B.A. Marshall, 1991
Hadroconus diadematus B.A. Marshall, 1988
Fluxinella discula (W.H. Dall, 1889)
Seguenzia donaldi (FOSSIL) H.S. Ladd, 1982 †
Seguenzia eidalima B.A. Marshall, 1991
Seguenzia elegans J.G. Jeffreys, 1885
Seguenzia elegantissima G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Seguenzia emmeles B.A. Marshall, 1991
Seguenzia engonia B.A. Marshall, 1991
Calliobasis eos (FOSSIL) B.A. Marshall, 1983 †
Seguenzia eritima A.E. Verrill, 1884
Fluxinella euphanes B.A. Marshall, 1991
Seguenzia eutyches B.A. Marshall, 1991
Anxietas exigua B.A. Marshall, 1991
Carenzia fastigiata B.A. Marshall, 1983
Seguenzia fatigans K.H. Barnard, 1963
Calliobasis festiva B.A. Marshall, 1991
Seguenzia floridana W.H. Dall, 1927
Seguenzia formosa J.G. Jeffreys, 1876
Seguenzia fulgida B.A. Marshall, 1983
Guttula galatheae J. Knudsen, 1964
Basilissa gelida K.H. Barnard, 1963
Fluxinella gellida (K.H. Barnard, 1963)
Calliobasis gemmata G.T. Poppe, S.P. Tagaro& P. Stahlschmidt, 2015
Seguenzia giovia W.H. Dall, 1919
Seguenzia glabella (FOSSIL) B.A. Marshall, 1983 †
Halystina globulus G.T. Poppe, S.P. Tagaro& H. Dekker, 2006
Hadroconus grandiosus B.A. Marshall, 1991
Basilissopsis hakuhoae Y. Kurihara & S. Ohta,2008
Seguenzia hapala W.P. Woodring, 1928
Seguenzia hosyu T. Habe, 1953
Carenzia inermis (J.F. Quinn, 1983)
Davisiana inquirenda E.N. Egorova, 1972