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Abactochromis labrosus.jpg
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Tribe: Haplochromini
Genus: Abactochromis
M. K. Oliver & Arnegard, 2010[2]
Species: A. labrosus
Binomial name
Abactochromis labrosus
(Trewavas, 1935)

Melanochromis labrosus

Abactochromis is a monotypic genus of cichlid fish containing the single species Abactochromis labrosus (formerly known as Melanochromis labrosus).[2] The genus name combines the Latin for "driven away from" ("ab" - away from, "actus" - driven) with the commonly used haplochromine name "chromis". The name encompasses both the origin of the genus (the species was "banished" from the genus Melanochromis) and the fish's solitary, wandering behaviour (as if it had been driven away from the other cichlids).[3]

A. labrosus is found in Malawi, Mozambique, and Tanzania. Its natural habitat is freshwater Lake Malawi. The largest known wild specimen (shown in the photo at right) had a standard length (without caudal fin) of 119 mm (4.7 in).


  1. ^ Kasembe, J (2017). "Abactochromis labrosus". The IUCN Red List of Threatened Species. IUCN. 2017: e.T61120A113464654. doi:10.2305/IUCN.UK.2017-1.RLTS.T61120A113464654.en. Retrieved 25 December 2017. 
  2. ^ a b Oliver, M.K. & M.E. Arnegard (2010). "A new genus for Melanochromis labrosus, a problematic Lake Malawi cichlid with hypertrophied lips (Teleostei: Cichlidae)" (PDF). Ichthyological Exploration of Freshwaters. 21 (3): 209–232. 
  3. ^ Michael K. Oliver, Ph.D. "Abactochromis labrosus". The Cichlid Fishes of Lake Malawi, Africa. Archived from the original on 24 September 2010. Retrieved 5 November 2010.