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> Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
Etymology: vilhenae: Dedicated to M. De Vilhena, Administrator-Director of the Compagnie diamantaire angolaise (Diamang) in appreciation of his support for the faunistic study of Angola (Ref. 11970, 89136).
More on author: Poll.

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

; eau douce benthopélagique. Tropical

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Africa: rivers Lulua and Luachimo (Kasai drainage, middle Congo River basin) in Democratic Republic of the Congo and Angola (Ref. 11970, 89136).

Taille / Poids / Âge

Maturity: L_m ? range ? - ? cm
Max length : 6.7 cm TL mâle / non sexé; (Ref. 3565)

Description synthétique Clés d'identification | Morphologie | Morphométrie

Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 11; Épines anales: 0; Rayons mous anaux: 9; Vertèbres: 38 - 39. Diagnosis: body depth 6.4-8.5 times in SL; head length 4.15-4.4 times in SL; snout rounded, 2.4-2.7 times in HL; eye superolateral, 5-5.75 times in HL, 1.5-1.85 times in interorbital space, 2-2.35 times in snout length; dorsal fin origin 1.15-1.3 times further from snout tip than from caudal fin origin, slightly in front of pelvic fin origin; anal fin origin 2-2.6 times further from pelvic fin origin than from caudal fin origin; pectoral fins large, 4-4.5 times in SL and 0.95-1.1 times longer than head; pelvic fins 5-5.9 times in SL, 1.15-1.4 times in HL; caudal peduncle 1.4-1.7 times longer than deep (Ref. 11970, 89136).

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Référence principale Upload your references | Références | Coordinateur | Collaborateurs

Poll, M., 1984. Kneriidae. p. 129-133. 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. 3565)

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

Données manquantes (DD) ; Date assessed: 16 February 2009

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 = 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

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

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Parakneria vilhenae Poll, 1965