HomeFreshwater aquarium fishAfrican cichlidsLethrinops rounded head Lethrinops rounded head (Lethrinops marginatus) Scientific name: Lethrinops marginatus Ahl, 1926 The Lethrinops rounded head (Lethrinops marginatus) is a freshwater fish of the family Cichlidae. Native range: Africa, Endemic to Lake Malawi. Known only from the type specimen taken from the northwestern end of the lake. BiologyFound over sand in shallow areas. Feeds mainly on soft invertebrates.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLethrinops marginatusFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length11.0EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Endemic to Lake Malawi. Known only from the type specimen taken from the northwestern end of the lake.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries:; aquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More african cichlidsAulonocara rostratumNkhomo-benga peacockAulonocara baenschiAulonocara Fort MaguireAulonocara hansbaenschiSuper VC-10 hapPlacidochromis milomoFairy cichlidAulonocara jacobfreibergiAulonocara chizumuluAulonocara korneliaeSee all african cichlids SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026