| Ampharetidae Malmgren, 1866 |
| Amphicteis Grube, 1850 |
| Amphicteis acutifrons Grube, 1860 |
| Amphicteis finmarchica Sars, 1865 |
| Amphicteis glabra Moore, 1905 |
| Amphicteis gunneri (Sars, 1835) |
| Amphicteis gunneri var. floridus Hartman, 1951 |
| Amphicteis mucronata Moore, 1923 |
| Amphicteis nasuta Ehlers, 1887 |
| Amphicteis obscurior Chamberlin, 1919 |
| Amphicteis orphnius Chamberlin, 1919 |
| Amphicteis procera Ehlers, 1887 |
| Amphicteis scaphobranchiata Moore, 1906 |
| Amphicteis uncopalea Chamberlin, 1919 |
| Amphisamytha Hessle, 1917 |
| Amphisamytha bioculata (Moore, 1906) |
| Amphisamytha fauchaldi Solís-Weiss & Hernández-Alcántara, 1994 |
| Amphisamytha galapagensis Zottoli, 1983 |
| Anobothrus Levinsen, 1884 |
| Anobothrus bimaculatus Fauchald, 1972 |