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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).
Eponymy: Comandante Ernesto Jardim de Vilhena (1876–1967) was a Portuguese naval officer (1898– 1920), during which time he was also a colonial administrator in Africa (1902–1912) and a politician, including being Minister for the Colonies (1917–1920). [...] (Ref. 128868), visit book page.
More on author: Poll.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser benthopelagisch. Tropical
Africa: rivers Lulua and Luachimo (Kasai drainage, middle Congo River basin) in Democratic Republic of the Congo and Angola (Ref. 11970, 89136).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ? range ? - ? cm
Max length : 6.7 cm TL Männchen/unbestimmt; (Ref. 3565)
Rückenflossenstacheln (insgesamt) : 0; Rückenflossenweichstrahlen (insgesamt) : 11; Afterflossenstacheln: 0; Afterflossenweichstrahlen: 9; Wirbelzahl: 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).
Body shape (shape guide): elongated; Cross section: circular.
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
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)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref.
82804): PD
50 = 0.5000 [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).
Anfälligkeit der Fischerei (Ref.
59153): Low vulnerability (10 of 100).
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