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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
Eponymy: Dr Christian Lévêque is a French ichthyologist and hydrobiologist who is Professor Emeritus at IRD (formerly ORSTOM). [...] (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water demersaal. Tropical
Africa: Atlantic Guinean slope, may possibly occur in coastal basins of Liberia.
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 13.0 cm SL mannelijk / geslacht onbekend; (Ref. 2915)
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 27 - 32; Anale stekels: 0; Anale zachte stralen: 32 - 37. Body depth 2.8-3.9 x SL. Caudal peduncle depth 15.7-22.6 x SL. Anal fin base 3.4-4.2 x SL. Eye diameter 2.8-3.9 x head length. Same coloration as P. tenuicauda. Same triangular spot in dorsal and V-spot on caudal. Anal with triangular spot.
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Affinities: appearance close to P. tenuicauda; difference in number of soft rays.
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Bigorne, R., 1990. Mormyridae. p. 122-184. In C. Lévêque, D. Paugy and G.G. Teugels (eds.) Faune des poissons d'eaux saumâtres d'Afrique de l'Ouest. tome 1. Faune Trop. 28. Musée Royal de l'Afrique Centrale, Tervuren, and ORSTOM, Paris. (Ref. 2915)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01549 (0.00678 - 0.03537), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Weerstandsvermogen (Ref. 120179) |
Hoog, minimale populatieverdubbelingstijd minder dan 15 maanden (Preliminary K or Fecundity.). |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (15 of 100). 🛈 |