Hypoplectrus gemma

Common Name

Blue Hamlet

Year Described

Goode & Bean, 1882


Dorsal Fin: X, 14-16
Anal Fin: III, 7
Pectoral Fin: 13-14
Pelvic Fin: I, 5
Lateral Line: 48-53
Gill Rakers: 6-7 (upper), 12-13 (lower) on first arch


Body and fins brilliant cobalt blue. The upper and lower margins of the tail are black.


McEachran, J.D. and J.D. Fechhelm. 2005. Fishes of the Gulf of Mexico. Volume 2: Scorpaeniformes to Tetraodontiformes. University of Texas Press, Austin. i-viii +1-1004.