Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Cichlidae
(Cichlids) > Pseudocrenilabrinae
Etymology: Stigmatochromis: Greek, stigma = mark, signal + Greek, chromis = a fish, perhaps a perch (Ref. 45335); melanchros: Specific epithet is a noun in apposition derived from the Greek melas, meaning "black" and from khros meaning "skin" or "surface of body" in reference to the overall black color of the breeding males (Ref. 87930).
Environment / Climate / Range
Freshwater; benthopelagic. Tropical, preferred ?; 13°S - 14°S, 34°E - 35°E
Africa: endemic to Lake Malawi, only known from Mazinzi Reef (Ref. 87930).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.5 cm SL male/unsexed; (Ref. 87930)
Morphology | Morphometrics
The presence of supra-pectoral and supra-anal spots, which do not extend to the base of the dorsal fin, plus a precaudal spot and a series of small spots along the base of the dorsal fin, combined with a snout length longer than the postorbital head length distinguishes this species as a member of Stigmatochromis. It is further diagnosed by the presence of mostly unicuspid teeth in the outer rows of the lower jaws. Stigmatochromis melanchros is distinguished from S. macrorhynchos by a wider interorbital width (19.3–20.5 vs. 13.7–16.2% HL) and from S. pholidophorus by a larger preorbital depth in relation to the vertical eye diameter (95.8–109.3% vs. 75.4%). Stigmatochromis melanchros is distinguished from S. modestus by a shorter lower jaw (40.7–44.4% HL vs. 45.2–48.3% HL) and by fewer teeth in the outer row of the left lower jaw (13–19 vs. 24–28). Stigmatochromis melanchros has a smaller horizontal eye diameter (25.2–26.9% HL) than S. woodi (27.0–32.6% HL).
Piscivore; breeds in rocky reefs where territorial males defend the vertical face of a large boulder near the sandy bottom (Ref. 87930).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stauffer, J.R. Jr., R.M. Cleaver-Yoder and A.F. Konings, 2011. Two new species of Stigmatochromis (Teleostei: Cichlidae) from Lake Malawi, Africa. Proc. Biol. Soc. Wash. 124(3): 212-222. (Ref. 87930)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01479 (0.00696 - 0.03143), b=2.97 (2.80 - 3.14), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.1 ±0.7 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (22 of 100) .