| Ahlia Jordan & Davis, 1891 |
| Ahlia egmontis (Jordan, 1884) |
| Aplatophis Böhlke, 1956 |
| Aplatophis chauliodus Böhlke, 1956 |
| Aprognathodon Böhlke, 1967 |
| Aprognathodon platyventris Böhlke, 1967 |
| Apterichtus A. M. C. Duméril, 1806 |
| Apterichtus ansp (Böhlke, 1968) |
| Apterichtus equatorialis (Myers & Wade, 1941) |
| Apterichtus gymnocelus (Böhlke, 1953) |
| Apterichtus kendalli (Gilbert, 1891) |
| Apterichtus selachops Jordan & Gilbert, 1882 |
| Asarcenchelys McCosker, 1985 |
| Asarcenchelys longimanus McCosker, 1985 |
| Bascanichthys Jordan & Davis, 1891 |
| Bascanichthys bascanium (Jordan, 1884) |
| Bascanichthys bascanoides Osburn & Nichols, 1916 |
| Bascanichthys cylindricus Meek & Hildebrand, 1923 |
| Bascanichthys panamensis Meek & Hildebrand, 1923 |
| Bascanichthys scuticaris (Goode & Bean, 1880) |