Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335); regani: Named for C. Tate Regan whose pioneering work at the British Museum of National History laid the foundation for many studies of African freshwater fishes (Ref. 52346).
Eponymy: Charles Tate Regan (1878–1943) was a British ichthyologist. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical
Africa: lakes Upemba and Mweru, and from the rivers Lualaba, Lufira, Luvua and Luapula below Kasenga, in Democratic Republic of the Congo and Zambia (Ref. 52346).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 27.5 cm TL male/unsexed; (Ref. 2266)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 14 - 15; Dorsal soft rays (total): 14 - 16; Anal spines: 3; Anal soft rays: 7 - 9; Vertebrae: 28 - 29. Diagnosis: 37-40 lateral line scales; terminal canal bearing scales of upper branch do not descend scale rows; 2 series of scales between upper lateral line and anterior part of lower; 15-17 gill-rakers along lower limb of first arch; entire premaxillary oral valve; 28 vertebrae; inferior vertebral apophysis of standard Tylochromis type; lower pharyngeal jaw never extremely robust with mill-like molariform teeth extending over dentigerous surface; 10-15 relatively stout outer row teeth and usually only one inner row on lower jaw (Ref. 52346).
Benthic macrophage (Ref. 52346). Mainly feeds on plants and insect larvae; maternal mouthbrooder that does not pair-bond (Ref. 52307).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stiassny, M.L.J., 1989. A taxonomic revision of the African genus Tylochromis (Labroidei, Cichlidae); whith notes on the anatomy and relationships of the group. Ann. Mus. R. Afr. Cent. Ser. 8, Sci. Zool., 258:1-161. (Ref. 52346)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 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 ±0.26 se; based on food items.
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (18 of 100).
