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Cichliformes (Cichlids, convict blennies) >
Cichlidae (Cichlids) > Pseudocrenilabrinae
Etymology: Tylochromis: Greek, tylos = callus + Greek, chromis = a fish, perhaps a perch (Ref. 45335); intermedius: Named by Boulenger (1916) presumably in reference to its scale formula which he stated to be intermediate between that of T. jentinki and T. lateralis (Ref. 52346).
More on author: Boulenger.
Issue
Specific status has been questioned by Schultz (1942) and Daget (1954)(Ref. 52346).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
; sötvatten bentopelagisk; pH range: 6.5 - 7.5; dH range: 2 - ?. Tropical; 24°C - 28°C (Ref. 2059); 14°N - 5°N
Africa: coastal rivers from Gambia to the Tano River in Ghana (Ref. 52307, 53405).
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 27.2 cm TL hane/ej könsbestämd; (Ref. 130795)
Taggstrålar i ryggfenan (totalt) : 12 - 15; Mjukstrålar i ryggfenan (totalt) : 15 - 18; Taggstrålar i analfenan: 3; Mjukstrålar i analfenan: 7 - 9; Ryggkotor: 31. Diagnosis: 31 vertebrae (Ref. 52346). 3 scale rows between anterior parts of upper and lower lateral line; thin lips and a lower jaw with posterior end lower than tip (forming an angle of 15-20° with the horizontal)(Ref. 7378, 52346, 53405).
Opportunistic benthic macrophage (Ref. 52346). Prefers insects and their larvae; maternal mouthbrooder that does not pair-bond (Ref. 52307).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
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)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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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=0.02188 (0.01112 - 0.04305), b=2.97 (2.80 - 3.14), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 2.6 ±0.3 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).