Type species: Sertularia lendigera Linnaeus, 1761
Taxonomy of Amathia has been reviewed by d'Hondt (1983) and by Chimonides (1987). In cases of disagreement, the listing below adopts the version of Chimonides.
This genus includes the species:
| Amathia acervata | Lamouroux, 1824 | Recent | Australia, Japan |
| Amathia aegyptiana | d'Hondt, 1983 | Recent | Suez Canal |
| Amathia alternata | Lamouroux, 1816 | Recent | Eastern USA (NC) |
| Amathia bicornis | Tenison Woods, 1880 | Recent | Australia, New Zealand |
| Amathia biseriata | Krauss, 1837 | Recent | Australia, New Zealand, S. Africa |
| Amathia brasiliensis | Busk, 1886 | Recent | Brazil |
| Amathia brongniartii | Kirkpatrick, 1888 | Recent | Australia |
| Amathia chimonidesi | Gordon & Spencer Jones, 2013 | Recent | South Pacific - New Zealand |
| Amathia connexa | Busk, 1886 | Recent | Australia (Cape York) |
| Amathia convoluta | Lamarck, 1816 | Recent | Australia |
| Amathia crispa | Lamarck, 1816 | Recent | Pacific, Australia |
| Amathia delicatula | Souto, Fernández-Pulpeiro & Reverter-Gil, 2010 | Recent | Mediterranean Mallorca |
| Amathia dichotoma | (Verrill, 1873) | Recent | Northwest Atlantic USA |
| Amathia distans | Busk, 1886 | Recent | Widespread (warm water) |
| Amathia gracei | Gordon & Spencer Jones, 2013 | Recent | South Pacific - New Zealand |
| Amathia guernseii | Chimonides, 1987 | Recent | Guernsey |
| Amathia immurata | Voigt, 1972 | U. Cretaceous | Netherlands |
| Amathia intermedis | Chimonides, 1987 | Recent | England, Ireland |
| Amathia lamourouxi | Chimonides, 1987 | Recent | Australia, New Zealand |
| Amathia lendigera | (Linnaeus, 1758) | Recent | Widespread |
| Amathia minoricensis | Souto, Fernández-Pulpeiro & Reverter-Gil, 2010 | Recent | Mediterranean Minorca |
| Amathia obliqua | MacGillivray, 1895 | Recent | Australia |
| Amathia pinnata | Kirkpatrick, 1888 | Recent | Australia |
| Amathia plumosa | MacGillivray, 1890 | Recent | Australia |
| Amathia populea | Busk MS in d'Hondt, 1983 | Recent | South Africa, Australia? |
| Amathia pruvoti | Calvet, 1911 | Recent | Europe |
| Amathia rudis | Kubanin, 1992 | Recent | Japan |
| Amathia scoparia | Meneghini, 1844 | Recent | |
| Amathia semiconvoluta | Lamouroux, 1824 | Recent | Mediterranean, S. Africa |
| Amathia semispiralis | Kirchenpauer, 1869 | Recent | Indonesia, Pacific |
| Amathia similis | Gordon & Spencer Jones, 2013 | Recent | South Pacific - New Zealand |
| Amathia tortuosa | Tenison Woods, 1879 | Recent | Australia |
| Amathia tricornis | Busk MS in Chimonides, 1987 | Recent | 'Australia' |
| Amathia unilateralis | Lamouroux, 1816 | Recent | Mediterranean |
| Amathia vermetiformis | Harmer, 1926 | Recent | Indonesia |
| Amathia vidovici | Heller, 1867 | Recent | Widespread |
| Amathia wilsoni | Kirkpatrick, 1888 | Recent | Australia |
| Amathia woodsi | Goldstein, 1879 | Recent | Australia |
| Amathia zealandica | Gordon & Spencer Jones, 2013 | Recent | South Pacific - New Zealand |