Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Otopharynx: Greek, ous = hear + Greek, pharyngx = pharynx (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal; depth range ? - 10 m. Tropical; 24°C - 27°C (Ref. 12468); 9°S - 15°S
Africa: endemic to Lake Malawi, restricted to southern part of the lake (Ref. 82798).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 16.0 cm TL male/unsexed; (Ref. 5595); 10.0 cm TL (female)
Inhabits caves; found in rocky habitats; feeds on the droppings of mainly herbivorous species; picks up edible morsels from the substrate; also seems to be attracted to large catfishes, from which it may eat wastes as well (Ref. 5595). Feeds on droppings of cave-dwelling catfish Bagrus meridionalis (Ref. 82798).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maréchal, C., 1991. Otopharynx. p. 347-351. In J. Daget, J.-P. Gosse, G.G. Teugels and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ISNB, Brussels; MRAC, Tervuren; and ORSTOM, Paris. Vol. 4. (Ref. 4991)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Fisheries: ; aquarium: commercial
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01514 (0.00703 - 0.03260), b=2.97 (2.80 - 3.14), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.0 ±0.00 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (18 of 100) .