HomeFish encyclopediaRay-finned fishesPerch-like fishGruntsWavyline grunt Wavyline grunt (Microlepidotus inornatus) Scientific name: Microlepidotus inornatus Gill, 1862 The Wavyline grunt (Microlepidotus inornatus) is a marine fish of the family Haemulidae. Native range: Eastern Central Pacific, Baja California to Mazatlan in Mexico; stragglers reach southern California, USA. BiologyDuring the day, it occurs in large schools that slowly move to the boarders of reefs. At nightfall, they move offshore and divide into smaller schools to feed. Feeds on mollusks and crustaceans. Marketed fresh.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMicrolepidotus inornatusFamilyHaemulidae (Grunts)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length45.0EnvironmentMarine; reef-associatedClimateSubtropicalDistributionEastern Central Pacific: Baja California to Mazatlan in Mexico; stragglers reach southern California, USA.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: commercialResilienceMedium, 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