• Allogramma elegans (Thiele & Jaeckel, 1931)
• Allogramma formosa (Jeffreys, 1882)
• Allogramma oahuense (Dall, 1913)
• Allogramma teramachii Habe, 1952 accepted as Lyonsia teramachii (Habe, 1952)
• Dallicordia alaskana (Dall, 1895)
• Dallicordia ochotica Scarlato, 1981
• Dallicordia uschakovi (Gorbunov, 1946)
• Lyonsiella abscissa Pelseneer, 1911
• Lyonsiella abyssicola (G.O. Sars, 1872)
• Lyonsiella agulhasensis (Thiele & Jaeckel, 1931)
• Lyonsiella alaskana Dall, 1895
• Lyonsiella angelika Linse, 2002 accepted as Policordia angelika (Linse, 2002)
• Lyonsiella aotearoa Dell, 1995
• Lyonsiella compressa (Allen & Turner, 1974)
• Lyonsiella cordata Verrill & Bush, 1898
• Lyonsiella curta Poutiers, 1984
• Lyonsiella formosa Jeffreys, 1874
• Lyonsiella fragilis Allen & Turner, 1974
• Lyonsiella frielei Allen & Turner, 1974
• Lyonsiella galatheae (Knudsen, 1970)
• Lyonsiella gemma Verrill, 1880
• Lyonsiella grandis E.A. Smith, 1885 accepted as Policordia grandis (E.A. Smith, 1885)
• Lyonsiella granulifera (A.E. Verrill, 1885)
• Lyonsiella horrida (Allen & Turner, 1974)
• Lyonsiella insculpta Jeffereys, 1881 accepted as Policordia insculpta (Jeffreys, 1881)
• Lyonsiella jeffreysi E.A. Smith, 1885 accepted as Lyonsiella smidti Friele, 1886
• Lyonsiella jeffreysi Friele, 1879 accepted as Policordia jeffreysi (Friele, 1879)
• Lyonsiella magnifica Dall, 1913
• Lyonsiella media Okutani, 1962 accepted as Policordia media (Okutani, 1962)
• Lyonsiella murrayi Knudsen, 1967 accepted as Policordia murrayi (Knudsen, 1967)
• Lyonsiella pacifica Dall, 1908
• Lyonsiella papyracea E.A. Smith, 1885
• Lyonsiella parva Okutani, 1962
• Lyonsiella perplexa Allen & Turner, 1974
• Lyonsiella pilula Pelseneer, 1911 accepted as Policordia pilula (Pelseneer, 1911)
• Lyonsiella pilula Prashad, 1932 accepted as Policordia pilula (Pelseneer, 1911)
• Lyonsiella pipoca Oliveira & Absalão, 2010
• Lyonsiella planulata Thiele, 1912 accepted as Lyonsia arcaeformis Martens, 1885
• Lyonsiella quadrata Hedley, 1907
• Lyonsiella quaylei F.R. Bernard, 1969
• Lyonsiella radiata Dall, 1889 accepted as Policordia radiata (Dall, 1889)
• Lyonsiella sinuosa (Jeffreys, 1882)
• Lyonsiella smidti Friele, 1886
• Lyonsiella smithi Dautzenberg, 1927 accepted as Lyonsiella smidti Friele, 1886
• Lyonsiella smithi Prashad, 1932 accepted as Lyonsiella abscissa Pelseneer, 1911
• Lyonsiella subquadrata (Jeffreys, 1882)
• Lyonsiella uschakovi Gorbunov, 1946
• Policordia alaskana (Dall, 1895)
• Policordia angelika (Linse, 2002)
• Policordia atlantica Allen & Turner, 1974
• Policordia cordata (Verrill & Bush, 1898)
• Policordia densicostata (Locard, 1898)
• Policordia diomedea Dall, Bartsch & Rehder, 1938
• Policordia extenta Ivanova, 1977
• Policordia gemma (A.E. Verrill, 1880)
• Policordia grandis (E.A. Smith, 1885)
• Policordia insculpta (Jeffreys, 1881)
• Policordia insolita Allen & Turner, 1974
• Policordia ivanovae Poutiers & Bernard, 1995
• Policordia japonica Habe, 1961 accepted as Policordia pilula (Pelseneer, 1911)
• Policordia japonica Ivanova, 1977 accepted as Policordia ivanovae Poutiers & Bernard, 1995
• Policordia jeffreysi (Friele, 1879)
• Policordia laevigata Ivanova, 1977
• Policordia laevis Allen & Turner, 1974
• Policordia lisbetae Knudsen, 1970
• Policordia lisbethae Knudsen, 1970
• Policordia maculata Ivanova, 1977
• Policordia media (Okutani, 1962)
• Policordia murrayi (Knudsen, 1967)
• Policordia obliqueovata Ivanova, 1977
• Policordia ochotica Scarlato, 1981 accepted as Policordia media (Okutani, 1962)
• Policordia olivacea Poutiers & Bernard, 1995
• Policordia ovata Ivanova, 1977
• Policordia papyracea (E.A. Smith, 1885)
• Policordia pergranosa Pelseneer, 1911 accepted as Poromya australis E.A. Smith, 1885
• Policordia pergranosa Prashad, 1932 accepted as Poromya australis E.A. Smith, 1885
• Policordia pilula (Pelseneer, 1911)
• Policordia radiata (Dall, 1889)
• Policordia rectangulata Ivanova, 1977
• Policordia subrotundata Ivanova, 1977
• Polycordia jeffreysi accepted as Policordia jeffreysi (Friele, 1879)