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Osteoglossiformes (Bony tongues) >
Mormyridae (Elephantfishes)
Etymology: Petrocephalus: Latin, petra = stone + Greek, kephale = head (Ref. 45335).
Eponymy: Baron Alphonse de Haulleville (1860–1938) was the Director (1910–1927) of the Musée du Congo Belge at Tervuren (RMCA). As such he would have been well known to Boulenger who was at BMNH, having moved there from Belgium (1890). (Ref. 128868), visit book page.
More on author: Boulenger.
Environment: milieu / climate zone / depth range / distribution range
Écologie
; eau douce démersal. Tropical
Africa: Kouilou-Niari (Ref. 53765) and Chiloango River basins (Ref. 41597). Report from the Ubangi River (middle Congo River basin) (Ref. 94857) questionable and needs confirmation. Presence in some swamps and minor tributaries of the Congo River estuary tentatively confirmed (Ref. 12818).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 7.0 cm TL mâle / non sexé; (Ref. 41597)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 18 - 21; Épines anales: 0; Rayons mous anaux: 26 - 28. Petrocephalus haullevillii is distinguished from P. congicus by the absence of a rosette of electroreceptor organs above the eye (Ref. 91771). Teeth bicuspid, 11-14 in upper jaw and 16-18 in lower jaw (Ref. 41597).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources 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=0.01549 (0.00684 - 0.03506), b=2.86 (2.68 - 3.04), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.2 ±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).
