HomeFish encyclopediaRay-finned fishesPerch-like fishSea basses: groupers and fairy bassletsBlue hamlet Blue hamlet (Hypoplectrus gemma) Scientific name: Hypoplectrus gemma Goode & Bean, 1882 The Blue hamlet (Hypoplectrus gemma) is a marine fish of the family Serranidae. Native range: Western Central Atlantic, southern Florida, the Florida Keys, and the Bahamas. Not found elsewhere. Species factsScientific nameHypoplectrus gemmaFamilySerranidae (Sea basses: groupers and fairy basslets)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length13.0EnvironmentMarine; reef-associatedClimateTropicalDistributionWestern Central Atlantic: southern Florida, the Florida Keys, and the Bahamas. Not found elsewhere.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026