n = 6
| Scientific Name | Author | Valid Name | Family | English Name |
|---|---|---|---|---|
| Opsopoeodus bollmani | Gilbert, 1891 | Notropis maculatus | Leuciscidae | Taillight shiner |
| Opsopoeodus emilae | Hay, 1881 | Opsopoeodus emiliae | Leuciscidae | Pugnose minnow |
| Opsopoeodus emiliae | Hay, 1881 | Opsopoeodus emiliae | Leuciscidae | Pugnose minnow |
| Opsopoeodus emiliae emiliae | Hay, 1881 | Opsopoeodus emiliae | Leuciscidae | Pugnose minnow |
| Opsopoeodus emiliae peninsularis | (Gilbert & Bailey, 1972) | Opsopoeodus emiliae | Leuciscidae | Pugnose minnow |
| Opsopoeodus osculus | Evermann, 1892 | Opsopoeodus emiliae | Leuciscidae | Pugnose minnow |