索足蛤科[1](學名:Thyasiridae),又名無齒蛤科[2],是雙殼綱滿月蛤目的一個軟體動物科,有11個屬。本科從過往滿月蛤科的索足蛤亞科[1]升格而成,是索足蛤總科之下唯一的一個科。
- Adontorhina屬 S. S. Berry, 1947
- Axinodon A. E. Verrill and Bush, 1898
- Axinopsida Keen and Chavan, 1951
- Axinulus A. E. Verrill and Bush, 1898
- Conchocele屬 Gabb, 1866
- Genaxinus屬 Iredale, 1930
- Leptaxinus屬 A. E. Verrill and Bush, 1898
- Maorithyas屬 Fleming, 1950
- Mendicula屬 Iredale, 1924
- 索足蛤屬 Thyasira Lamarck, 1818
- Thyasira alleni Carrozza, 1981
- Thyasira barbarensis (Dall, 1890)
- Thyasira brevis A. E. Verrill and Bush, 1898
- Thyasira croulinensis Jeffreys, 1874
- Thyasira cycladia S. Wood, 1853
- Thyasira cygnus Dall, 1916 — Swan cleft clam
- Thyasira elliptica Verrill and Bush, 1898
- Thyasira equalis (A. E. Verrill and Bush, 1898)
- Thyasira eumyaria M. Sars, 1870
- Thyasira flexuosa (Montagu, 1803)
- Thyasira gouldi (Philippi, 1845)
- Thyasira grandis Verrill and Smith, 1885
- Thyasira granulosa Monterosato, 1874
- Thyasira incrassatus (Jeffreys, 1876)
- Thyasira obsoleta (Verrill and Bush, 1898)
- Thyasira ovoidea Dall, 1889
- Thyasira peroniana peregrina Iredale, 1930
- Thyasira peroniana waikanae Fleming, 1950
- Thyasira plicata Verrill and Smith, 1885
- Thyasira pygmaea Verrill and Bush, 1898
- Thyasira resupina neozelanica (Iredale, 1930)
- Thyasira rotunda Jeffreys, 1881
- Thyasira simplex A. E. Verrill and Bush, 1898
- Thyasira subovata Jeffreys, 1881
- Thyasira subtrigona (Jeffreys, 1858)
- Thyasira succisa (Jeffreys, 1876)
- Thyasira tortuosa Jeffreys, 1881
- Thyasira tricarinata Dall, 1916
- Thyasira triseriata
- Thyasira trisinuata (d'Orbigny, 1842) — Atlantic cleft clam
- Wallerconcha屬 Valentich-Scott and Powell,[3]2014