The body of the Gizzard Shad is distinctly robust and deep when compared to relatives such as the American Shad, Hickory Shad, Atlantic Thread Herring, and Blueback Herring. The Atlantic Menhaden which also exhibits a deep body akin to the Gizzard Shad can be discerned by its lack of a trailing dorsal ray filament, proportionally larger head, and absence of a snout protruding beyond its lower jaw.