Actinopteri (ray-finned fishes) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335); labrodon: Named by Regan (1920) presumably in reference to the formidable pharyngeal tooth development of this species; derived from the Greek labros = fierce, greedy and odontos = tooth (Ref. 52346). More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Africa: throughout the Congo River basin from the lower Congo River to just above Stanley Falls, including Pool Malebo (=Stanley Pool), middle Congo River and the rivers Kwilu, Itimbiri and Lomami (Ref. 52346).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.6 cm SL male/unsexed; (Ref. 5714)
Morphology | Morphometrics
(total): 14 - 16;
soft rays: 7;
Vertebrae: 28. Diagnosis: lateral line with 34 or fewer scales; 17-18 gill-rakers along lower limb of first arch; inferior vertebral apophysis with characteristic spade-like outline; extremely robust lower pharyngeal jaw with flattened mill-like molariform teeth covering 2/3 of the dentigerous surface; fully ossified posttemporal latero-sensory canal; relatively short pectoral fins rarely reaching the level of the vent (Ref. 52346).
Benthic macrophage (Ref. 52346). Feeds on insects and their larvae, as well as on molluscs, plants and detritus; maternal mouthbrooder that does not pair bond (Ref. 52307).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stiassny, M.L.J., 1991. Tylochromis. p. 526-533. 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. 5714)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.6 ±0.32 se; based on food items.
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .