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> Gonorynchiformes (Milkfishes) > Kneriidae (Shellears)
Etymology: Kneria:From Kner, that studied fishes in the Imperial Museum of Vienna, with Jean Natterer (1817) (Ref. 45335); wittei:Dedicated to M.G.F. De Witte, whose Kneriidae specimens, collected in Katanga, have allowed to resolve the generic status of Kneria and Xenopomatichthys (Ref. 89080). Eponymy: Dr Rudolf Kner (1810–1869) was an Austrian zoologist specialising in ichthyology. [...] Dr Gaston-François de Witte (1897–1980) was a Belgian herpetologist. [...] (Ref. 128868), visit book page. More on author: Poll.
Ambiente: milieu / zona climática / intervalo de profundidade / gama de distribuição Ecologia
Africa: Lake Tanganyika basin and upper Congo River basin in Democratic Republic of the Congo (Ref. 2970). Also reported from the Lake Tanganyika basin in Tanzania (Ref. 4967), but presence in Tanzania unconfirmed in Ref. 26644.
Tamanho / Peso / Idade
Maturidade: Lm? range ? - ? cm Max length : 8.6 cm SL macho/indeterminado; (Ref. 2970)
Espinhos dorsais (total) : 0; Raios dorsais moles (total) : 10 - 12; Espinhos anais: 0; Raios anais moles: 9 - 10; Vértebras: 41 - 44. Diagnosis: body depth 4.6-7 times in SL; head length 4.3-6 times in SL (Ref. 2970, 36901, 45485, 89080). Head 1.5-2 times longer than head depth (Ref. 2970). Snout length 2.5-3.8 times in HL, 1.1-1.7 times in postorbital length; eye lateral, its diameter 3.4-5.2 times in HL; interorbital distance 2.3-3.6 times in HL (Ref. 2970, 36901, 45485, 89080). Dorsal fin origin 0.8-1.1 times closer to tip of snout than to caudal fin (Ref. 2970), above anterior pelvic fin rays (Ref. 2970, 36901, 45485, 89080) or slightly more posterior (Ref. 2970). Anal fin 0.9-1.7 times further from pelvics than from caudal fin; pectoral fin length 0.8-1.3 times in HL; pelvic fin length 0.9-1.4 times in HL; caudal peduncle 1.4-2.2 times longer than deep (Ref. 2970). Mature males with opercular and postopercular organ (Ref. 2970, 36901). Mouth inferior, straight, its maximum width (including lips) 2.8-4 times in HL (Ref. 2970). Body brownish dorsally, yellowish ventrally (Ref. 2970, 36901, 45485, 89080). A pronounced brownish lateral band on flanks, either continuous (Ref. 2970, 36901, 45485, 89080) or made up of 8-10 sometimes very contrasting spots (Ref. 2970). Pale zone just above lateral band; medio-dorsal line often with small dotts (Ref. 2970). Dorsal fin sometimes with slightly darker, transversal band and dark spot at origin; caudal fin base darker, its rays slightly greyish (Ref. 36901, 45485, 89080). Pelvic fins with black spot at their base (Ref. 2970, 36901, 45485, 89080). Pectoral, pelvic and anal fins pale (Ref. 45485, 89080).
Body shape (shape guide): elongated; Cross section: circular.
Inhabits upland streams and pools; hardy and can survive some time out of water (Ref. 4967). Rare, but abundant in its habitats (Ref. 36901).
Ciclo de vida e comportamento de acasalamento Maturidade | Reprodução | Desova | Ovos | Fecundidade | Larvas
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)
Categoria na Lista Vermelha da IUCN (Ref. 130435: Version 2025-2 (Global))
Dinâmica das populações Parâmetros de crescimento Idades / tamanhos máximos Comprimento-peso rel. Comprimento-comprimento rel. Frequência de comprimento Conversão de massa Recrutamento Abundância
Ciclo de vida Reprodução Maturidade Maturidade/Rel. das guelras Fecundidade Desova Agregações de desova Ovos Desenvolvimento dos ovos Larvas Dinâmica larvar
Fisiologia Composição corporal Nutrientes Consumo de oxigénio Tipo de natação Velocidade de natação Pigmentos visuais Som de peixe Doenças e Parasitas Toxicidade (LC50s)
