| Harpadontinae Bleeker, 1875 |
| Saurida Valenciennes, 1850 |
| Saurida brasiliensis Norman, 1935 |
| Saurida caribbaea Breder, 1927 |
| Saurida caribbaeus Breder, 1927 |
| Saurida normani Longley, 1935 |
| Saurida suspicio Breder, 1927 |
| Synodontidae Gill, 1861 |
| Synodontinae Gill, 1861 |
| Synodus Scopoli, 1777 |
| Synodus evermanni Jordan & Bollman, 1890 |
| Synodus foetens (Linnaeus, 1766) |
| Synodus intermedius (Spix & Agassiz, 1829) |
| Synodus jenkinsi Jordan & Bollman, 1890 |
| Synodus lacertinus Gilbert, 1890 |
| Synodus lucioceps (Ayres, 1855) |
| Synodus macrostigmus Frable, Luther & Baldwin, 2013 |
| Synodus poeyi Jordan, 1887 |
| Synodus scituliceps Jordan & Gilbert, 1882 |
| Synodus sechurae Hildebrand, 1946 |