Teleostei (teleosts) > Cichliformes
(Cichlids, convict blennies) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Rhamphochromis: Greek, rhamphos = bill, peak + Greek, chromis = a fish, perhaps a perch (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical; 9°S - 18°S, 33°W - 36°W
Africa: Endemic to Lake Malawi and upper Shire River.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 45.0 cm TL male/unsexed; (Ref. 5595)
Morphology | Morphometrics
Diagnosis: teeth rather long and widely-spaced; premaxillary pedicel and jaws relatively short; eye rather small; cheek depth relatively large (Ref. 55949).
Found at fairly deep levels of the open water. Piscivorous (Ref. 5595).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Maréchal, C., 1991. Rhamphochromis. p. 422-424. 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. 5689)
IUCN Red List Status (Ref. 126983)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5156 [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
): 4.2 ±0.73 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (35 of 100).
Nutrients (Ref. 124155
): Calcium = 133 [68, 259] mg/100g ; Iron = 1.66 [0.88, 3.46] mg/100g ; Protein = 19.7 [17.2, 21.8] % ; Omega3 = 0.347 [0.128, 0.988] g/100g ; Selenium = 103 [43, 255] μg/100g ; VitaminA = 37.1 [9.6, 117.4] μg/100g ; Zinc = 1.32 [0.86, 2.04] mg/100g (wet weight); based on nutrient studies.