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Siluriformes (Catfishes) >
Pimelodidae (Long-whiskered catfishes)
Etymology: Sorubim: Brazilian local name, sorubim (Ref. 45335); elongatus: Named for its extremely elongate shaped head and body..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の. Tropical
South America: Amazon, Essequibo, and Orinoco River basins (Ref. 36506); a disjunct record from Río Mamore, Bolivia (Ref. 57983).
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 32.2 cm SL オス/雌雄の選別がない; (Ref. 111115); 最大公表体重: 260.00 g (Ref. 111115)
簡単な記述
形態学 | 形態計測学
背鰭 (合計): 6; 肛門の骨 0; 臀鰭: 20 - 25; 脊つい: 44 - 46. Laterally positioned eyes, visible dorsally and ventrally; in adults, the diameter is 2.2-3.3 times into interorbital width. Inner mental barbels usually posterior to gular apex, rarely even with it, and never reaching fleshy margin of opercle. Outer mental barbels longer, extending beyond the origin of pectoral fins. Maxillary barbels variable in length, extending to pelvic fins or beyond. Pelvic fins when depressed reaching approximately halfway from anus to anal-fin origin.
Collected from both white and black waters; found in floodplain lakes, small creeks (or caños) to large rivers and tidal rivers; on sand, mud, and clay substrates associated with vegetation (e.g. tall reeds, emergent grasses, and root masses of stream-side trees). Apparently nocturnal and hide in groups along stream margins during the day (Ref. 40631).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Littmann, M.W., B.M. Burr, R.E. Schmidt and E.R. Isern, 2001. Sorubim elongatus, a new species of catfish (Siluriformes: Pimelodidae) from tropical South America syntopic with S. lima. Ichthyol. Explor. Freshwat. 12(1):1-16. (Ref. 40631)
Human uses
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