| Family | Scientific Name | Author | Year | Common Name |
| Clupeidae | Etrumeus sadina | (Mitchill) | 1814 | Round Herring |
Etrumeus sadina
Unique Characters: W-shaped pelvic scute present. Other abdominal scutes absent. Body elongate, cylindrical; abdomen rounded. Premaxillae rectangular (not triangular) giving distinctive appearance to mouth.
Similar Species: None. All other clupeids with W-shaped pelvic scute absent. Pelvic scute (and most others) with lateral arms. Series of abdominal scutes present, often keeled.
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