ARMS Taxon list
Astarte acuticostata Friele, 1877
Astarte alaskensis Dall, 1903 accepted as Tridonta elliptica (T. Brown, 1827)
Astarte arctica (J. E. Gray, 1824) accepted as Tridonta arctica (J. E. Gray, 1824)
Astarte borealis (Schumacher, 1817) accepted as Tridonta borealis Schumacher, 1817
Astarte crenata (J. E. Gray, 1824)
Astarte elliptica (T. Brown, 1827) accepted as Tridonta elliptica (T. Brown, 1827)
Astarte esquimalti (Baird, 1863)
Astarte montagui (Dillwyn, 1817) accepted as Tridonta montagui (Dillwyn, 1817)
Astarte sulcata (da Costa, 1778)
Coanicardita ventricosa (A. Gould, 1850)
Crassicardia crassidens (Broderip & G. B. Sowerby I, 1829) accepted as Cyclocardia crassidens (Broderip & G. B. Sowerby I, 1829)
Crassicardia crebricostata (A. Krause, 1885) accepted as Cyclocardia crebricostata (A. Krause, 1885)
Cyclocardia crassidens (Broderip & G. B. Sowerby I, 1829)
Cyclocardia crebricostata (A. Krause, 1885)
Cyclocardia ventricosa (A. Gould, 1850) accepted as Coanicardita ventricosa (A. Gould, 1850)
Elliptica alaskensis (Dall, 1903) accepted as Tridonta elliptica (T. Brown, 1827)
Elliptica elliptica (T. Brown, 1827) accepted as Tridonta elliptica (T. Brown, 1827)
Nicania montagui (Dillwyn, 1817) accepted as Tridonta montagui (Dillwyn, 1817)
Rictocyma esquimalti (Baird, 1863) accepted as Astarte esquimalti (Baird, 1863)
Tridonta arctica (J. E. Gray, 1824)
Tridonta borealis Schumacher, 1817
Tridonta elliptica (T. Brown, 1827)
Tridonta montagui (Dillwyn, 1817)