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> Siluriformes (Catfishes) > Schilbeidae (Schilbid catfishes)
Etymology: brevianalis:From the Latin "brevis" (short) and "anus" (here referring to the anal fin) because of the short anal fin and the low number of anal fin rays in the types of this species (Ref. 43912). More on author: Pellegrin.
Africa: Nigeria to Cameroon (Ref. 57127), possibly also from coastal rivers in Togo (Ref. 78218). Known from the rivers Ogun (Ref. 13331), lower Niger (Ref. 13331, 57127), Kwa-Ibo and Cross in Nigeria (Ref. 43912, 57127), and the Wouri, Sanaga and Nyong in Cameroon (Ref. 7351, 43912, 81643). Report from Ogowe (Ref. 43912) refers to S. laticeps (Ref. 81643). Report from the Congo River basin (Ref. 51193) not confirmed in Ref. 43912, 78218 or 81643.
サイズ / 重さ / 年齢
成熟: Lm? range ? - ? cm Max length : 8.2 cm SL オス/雌雄の選別がない; (Ref. 81643)
背面の脊椎 (合計) : 1; 臀鰭: 34 - 39. Diagnosis: small species, less than 100 mm long; eyes small, diameter not exceeding 23% of head length; inner margin of pectoral-fin spine weakly denticulate (Ref. 43912, 57127, 81643). Head rounded (Ref. 43912). Nasal barbels always extending beyond hind margin of eye (Ref. 57127, 81643) but not beyond anterior border of opercle (Ref. 43912). Adipose fin always present (Ref. 43912, 57127, 81643) and fully developed (Ref. 57127, 81643). 34-39 branched anal-fin rays and 6-8 gill rakers on lower limb of first gill arch (Ref. 57127, 81643). Colour pattern marbled (Ref. 43912, 57127, 81643). Barbels well developed (Ref. 81643). Posterior nostrils at same distance or closer to each other than the anterior pair (Ref. 43912, 81643).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Oviparous, eggs are unguarded (Ref. 205). Occasionally imported from Nigeria to Europe or America for aquarium purposes (Ref. 43912).
De Vos, L., 1995. A systematic revision of the African Schilbeidae (Teleostei, Siluriformes). With an annotated bibliography. Ann. Mus. R. Afr. Centr., Sci. Zool., 271:1-450. (Ref. 43912)
IUCNのレッドリストの状況は (Ref. 130435: Version 2025-2 (Global))
系統多様性指数 (参照 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00550 (0.00251 - 0.01205), b=3.06 (2.87 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
栄養段階 (参照 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
