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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); leonensis: Named in reference to the country in which specimens of the species were first identified (Ref. 52346).
Environment: milieu / climate zone / depth range / distribution range
Ecología
; agua dulce bentopelágico. Tropical; 24°C - 26°C (Ref. 12468); 10°N - 4°N
Africa: coastal rivers from the Kogon (Guinea) to the Bia (Sierra Leone) (Ref. 53405).
Tamaño / Peso / Age
Maturity: Lm ? range ? - ? cm
Max length : 21.9 cm SL macho / no sexado; (Ref. 53405)
Espinas dorsales (total) : 13 - 15; Radios blandos dorsales (total) : 13 - 16; Espinas anales: 3; Radios blandos anales: 7; Vértebra: 28. Diagnosis: 2 scale rows between upper lateral line and anterior part of lower lateral line (Ref. 52346, 53405). High lateral line count (38-42); low gill raker count (13-15 along lower limb of first arch); lower pharyngeal jaw with a short, deep keel that is deeply indented along the ventral margin (Ref. 52346).
Appears to be an exclusively Upper Guinean Province species (Ref. 52346). Inhabits large sandbanks and hardly ever penetrates into small streams (Ref. 53407). Benthic macrophage (Ref. 52346). Feeds primarily upon insects and their larvae, but also accepts plants (Ref. 52307). Oviphilous (Ref. 53407), maternal mouthbrooder that does not pair bond (Ref. 52307).
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Teugels, G.G. and D.F.E. Thys van den Audenaerde, 2003. Cichlidae. p. 521-600. In D. Paugy, C. Lévêque and G.G Teugels (eds.) The fresh and brackish water fishes of West Africa Volume 2. Coll. faune et flore tropicales 40. Institut de recherche de développement, Paris, France, Muséum national d'histoire naturelle, Paris, France and Musée royal de l'Afrique Central, Tervuren, Belgium, 815p. (Ref. 53405)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
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=0.01660 (0.00825 - 0.03340), b=2.95 (2.78 - 3.12), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Nivel trófico (Ref.
69278): 2.6 ±0.26 se; based on food items.
Resiliencia (Ref.
120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).
