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> Osteoglossiformes (Bony tongues) > Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
More on author: Lacepède.

Environment: milieu / climate zone / depth range / distribution range Ecologie

; zoet water demersaal; potamodroom (Ref. 51243). Tropical

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Africa: Nile basin (Ref. 2915) including the Ghazal and Jebel, White Nile, Blue Nile and Lake Nubia (Ref. 28714). Also in the Comoé (subspecies P. b. comoensis), Chad, Volta (Ref. 2915, 81274), Cross and Niger (Ref. 81274) including the Bénoué (Ref. 2915, 81274).

Lengte bij maturiteit / Grootte / Gewicht / Leeftijd

Maturity: L_m 11.0 range ? - ? cm
Max length : 20.0 cm SL mannelijk / geslacht onbekend; (Ref. 31256); max. gepubliceerd gewicht: 40.00 g (Ref. 3799)

Korte beschrijving Determinatiesleutels | Morfologie | Morfometrie

Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 25 - 35; Anale stekels: 0; Anale zachte stralen: 31 - 38. Diagnosis: dorsal fin between one half and twice the anal fin length; mouth inferior situated below the eyes (Ref. 28714). Body height > 25% of SL (Ref. 28714), 2.6-3.2 times in SL (Ref. 2915, 81274). Anal fin base 3.1-3.4 times in SL; caudal peduncle height 16.8-18.7 times in SL; eye diameter 3.5-4.5 times in head length; uniform silvery color (Ref. 2915, 81274). Upper jaw with 13-19, lower jaw with 22-29 teeth; subspecies P. b. bane has 29-34 rays in dorsal fin and 31-38 in anal while P. b. comoensis has a lower average number of rays, 25-30 in dorsal and 32-36 in anal fin; scale counts: 40-44 in a longitudinal line and 12 around caudal peduncle; ratio standard length/caudal-peduncle depth in P. b. comoensis: 17.0-18.0 (Ref. 81274). Coloration: uniform silvery (Ref. 2915, 81274).

Inhabits open water and vegetated areas of lakes, lagoons and irrigation canals; females grow larger and are more frequently caught than males (Sudan); chiefly insectivorous, feeding on the bottom and in vegetation (Ref. 28714). Affinities: P. ansorgii, differ only by the small eyes, the thick caudal peduncle, numerous teeth on lower jaw and the uniform silvery color (P. ansorgii has a spot on the dorsal fin).

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Gosse, J.-P., 1984. Mormyridae. p. 63-122. In J. Daget, J.-P. Gosse and D.F.E. Thys van den Audenaerde (eds.) Check-list of the freshwater fishes of Africa (CLOFFA). ORSTOM, Paris and MRAC, Tervuren. Vol. 1. (Ref. 3203)

Status op de Rode Lijst van het IUCN (Ref. 130435)

Niet bedreigd (LC) ; Date assessed: 04 September 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Gevaar voor de mens

Harmless

Gebruik door de mens

Visserij: ; Aquarium: Commercieel

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Estimates based on models

Fylogenetische diversiteitsindex (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01479 (0.00772 - 0.02833), b=2.86 (2.70 - 3.02), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).

Trofisch niveau (Ref. 69278): 3.2 ±0.40 se; based on food items.

Weerstandsvermogen (Ref. 120179): Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (14 of 100).

Prijsklasse (Ref. 80766): Unknown.

Petrocephalus bane (Lacepède, 1803)