Tidewater Silverside and Similar Species
Menidia peninsulae
Got a photo? Identify fish instantly with the Fishby app.
Open the appSeveral fish can be confused with Tidewater Silverside. Here are the key differences.
Species often confused with {name}
Atlantic Silverside
Menidia menidia
Key differences: The Atlantic Silverside (Menidia menidia) typically has the origin of its first dorsal fin anterior to or directly above the origin of the anal fin, whereas in M. peninsulae, it is posterior to the anal fin origin. M. menidia also tends to have a slightly more compressed body and a more northern distribution.
Rough Silverside
Membras martinica
Key differences: The Rough Silverside (Membras martinica) has ctenoid scales (rough to the touch) and a more pointed snout, contrasting with the cycloid scales (smooth) and blunter snout of M. peninsulae. The silvery stripe in Membras is often less distinct and narrower.
Inland Silverside
Menidia beryllina
Key differences: The Inland Silverside (Menidia beryllina) often has a more slender body and a more pointed snout than M. peninsulae. While their ranges overlap, M. beryllina is more tolerant of freshwater and can be found further upstream in estuaries. Morphological differences can be subtle and often require meristic counts for definitive identification.
Explore Tidewater Silverside
Identify fish anywhere
Free on iOS, Android, and Web. Photo identification, full species details, and more.