Abactochromis

{{Short description|Genus of fishes}}

{{Speciesbox

| image = Abactochromis labrosus.jpg

| status = LC | status_system = IUCN3.1

| status_ref = {{cite iucn |author=Konings, A. |author2=Kazembe, J. |name-list-style=amp |year=2018 |title=Abactochromis labrosus |errata=2019 |page=e.T61120A148674180 |doi=10.2305/IUCN.UK.2018-2.RLTS.T61120A148674180.en |access-date=20 November 2021}}

| parent_authority = M. K. Oliver & Arnegard, 2010

| taxon = Abactochromis labrosus

| display_parents = 2

| authority = (Trewavas, 1935)

| synonyms = Melanochromis labrosus

}}

Abactochromis is a monotypic genus of cichlid fish containing the single species Abactochromis labrosus (formerly known as Melanochromis labrosus).{{cite journal|author = Oliver, M.K.|author2 = M.E. Arnegard|name-list-style = amp | title = A new genus for Melanochromis labrosus, a problematic Lake Malawi cichlid with hypertrophied lips (Teleostei: Cichlidae) | year = 2010 | journal = Ichthyological Exploration of Freshwaters | volume = 21 | issue = 3 | pages = 209–232| url = http://malawicichlids.com/oliver_arnegard_2010.pdf}} 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).{{cite web|url = http://malawicichlids.com/mw09004.htm | title= Abactochromis labrosus |author = Michael K. Oliver, Ph.D. |date=28 October 2010 |work= The Cichlid Fishes of Lake Malawi, Africa |publisher = Michael K. Oliver |access-date=19 January 2019}}

A. labrosus is native to Lake Malawi.{{cite web|url=https://www.fishwisepro.com/Genus/Abactochromis-11837|title=Genus Abactochromis Oliver & Arnegard 2010 |year=2010 |work=FishWisePro |access-date=16 April 2020}} The largest known wild specimen (shown in the photo at right) had a standard length (without caudal fin) of {{cvt|119|mm}}.