HomeFish encyclopediaRay-finned fishesPerch-like fishGruntsHumpback grunt Humpback grunt (Microlepidotus brevipinnis) Scientific name: Microlepidotus brevipinnis Steindachner, 1869 The Humpback grunt (Microlepidotus brevipinnis) is a marine fish of the family Haemulidae. Native range: Eastern Central Pacific, Gulf of California to Panama. BiologyBody elongate, compressed, and not very deep (depth contained 2.6 to 3.0 times in standard length); mouth small and terminal, its posterior end located at the same level as the anterior rim of the eye; first gill arch with 16 gill rakers; dorsal slightly stronger than third but almost equal in length; scale series above lateral line oblique; body blue gray; each scale bearing a pearly gray spot, the spots appearing to form lines following the scale series; fins yellowish.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrolepidotus brevipinnisFamilyHaemulidae (Grunts)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length40.0Common length30.0EnvironmentMarine; benthopelagicClimateTropicalDistributionEastern Central Pacific: Gulf of California to Panama.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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