Menidia extensa

FamilyScientific NameAuthorYearCommon Name
AtherinopsidaeMenidia extensaHubbs and Raney1946Waccamaw Silverside

Menidia extensa

Unique Characters: Snout rounded when viewed from above. Body very slender. Anal fin rays 19-21. Restricted to Lake Waccamaw

Similar Species

Southern Brook Silverside Labidesthes vanhyningi

Inland Silverside
Menidia beryllina

Atlantic Silverside Menidia menidia

Labidesthes vanhyningi
Southern Brook Silverside – Labidesthes vanhyningi
Menidia menidia
Atlantic Silverside – Menidia menidia

Southern Brook Silverside Labidesthes vanhyningi. Long, beak-like snout; triangular-shape when viewed from above. Two widely separated dorsal fins. First dorsal fin origin above anal fin origin. Anal fin rays 21-24. Pale green body with small scales. Male develops a red snout.

Inland Silverside Menidia beryllina. Silver mid-lateral stripe. Snout about as long as eye diameter and rounded when viewed from above. Scales relatively large and outlined with black. Origin of first dorsal fin forward of origin of the anal fin. Anal rays usually 18 or fewer. Not reported from Lake Waccamaw.

Atlantic Silverside Menidia menidia. Snout rounded when viewed from above. Anal rays usually 22 or more. Origin of first dorsal fin over origin of the anal fin. Not reported from Lake Waccamaw.