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

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

; eau douce démersal. Tropical

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Africa: lower and upper Luapula River system in Zambia (Ref. 91771).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 11.9 cm SL mâle / non sexé; (Ref. 91771)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 22 - 26; Épines anales: 0; Rayons mous anaux: 30 - 35. Diagnosis: Number of anal fin rays between 30 and 35; anal fin length 24.4-27.8% of standard length; preanal length 54.3-59.0% of standard length (Ref. 91771). Caudal peduncle depth 26.9-33.1% of its length (Ref. 91771).

Type locality (Lufubu River) is a braided rocky channel with dense riparian forest; water flow rapid, but also deep pools providing slacker flow areas; substrate is rocky but with considerable amounts of leaf litter; some sections with mats of aquatic water ferns and mosses and filamentous algae (Ref. 91771).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Kramer, B., R. Bills, P. Skelton and M. Wink, 2012. A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. Journal of Natural History 46(35-36):2179-2258. (Ref. 91771)

Statut dans la liste rouge de l'IUCN (Ref. 130435)

Non évalué

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Menace pour l'homme

Harmless

Utilisations par l'homme

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01585 (0.00697 - 0.03603), b=2.85 (2.67 - 3.03), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Niveau trophique (Ref. 69278): 3.3 ±0.4 se; based on size and trophs of closest relatives

Résilience (Ref. 120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Petrocephalus longianalis Kramer, Bills, Skelton & Wink, 2012