分类 / Names
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Teleostei >
Siluriformes (Catfishes) >
Amphiliidae (Loach catfishes) > Doumeinae
Etymology: inga: Named for the Inga Rapids, on the lower Congo
River; a noun in apposition (Ref. 88958).
More on authors: Ferraris, Vari & Skelton.
Environment: milieu / climate zone / depth range / distribution range
生态学
; 淡水 居于水底的. ; 5°S - 6°S, 13°E - 14°E
Africa: known only from the vicinity of the Inga Dam, Lower Congo River basin, in the Democratic Republic of the Congo (Ref. 88958, 92838).
大小 / 重量 / 年龄
Maturity: Lm ? range ? - ? cm
Max length : 11.1 cm SL 雄鱼/尚未辨别雌雄; (Ref. 88958)
简单描述
检索表 | 型态特徵 | 形态测量图
背棘 (总数) : 0; 背的软条 (总数) : 7 - 8; 臀棘: 0; 臀鳍软条: 10 - 11; 脊椎骨: 35 - 37. Diagnosis: Congoglanis inga differs from C. sagitta in having a longer maxillary barbel, reaching well past vertical through anterior margin of orbit vs. not reaching to orbit; a deeper caudal peduncle, 7-8% of standard length vs. 6%; and less slender caudal peduncle, its depth 2.1-2.9 times in its length vs. 3.1-4.0; a longer pelvic fin, 22-25% of standard length vs. 19-21%; a more posteriorly placed anal fin, anal-fin origin approximately at tip of adpressed pelvic fin vs. origin well in advance of tip of adpressed pelvic fin; longer anal-fin rays, posterior rays of adpressed anal fin extend well past vertical through posterior limit of adipose fin vs. posterior rays extend to, rarely slightly beyond, vertical through posterior limit of adipose fin; and fewer vertebrae, 35-37 vs. 39-41 (Ref. 88958). It differs from C. alula in having a longer maxillary barbel, reaching well past vertical through anterior margin of orbit vs. not reaching to orbit; a shorter pelvic fin, 19-21% of standard length vs. 24-28%; a longer postorbital length, 32-35% of head length vs. 27-31%; a relatively wide interorbital width, 2 times eye-diameter vs. 1.5 times; and longer anal-fin rays, posterior rays of adpressed anal fin extend well past vertical through posterior limit of adipose fin vs. posterior rays extend to, rarely slightly beyond, vertical through posterior limit of adipose fin (Ref. 88958).
This species has been collected from "a long channel with moderate current, numerous pools and a predominantly rocky bottom" (Ref. 42510, 88958).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔鱼
Ferraris, C.J. Jr., R.P. Vari and P.H. Skelton, 2011. A new genus of African loach catfish (Siluriformes: Amphiliidae) from the Congo River basin, the sister-group to all other genera of the Doumeinae, with the description of two new species. Copeia 2011(4):477-489. (Ref. 88958)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5625 [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).
营养阶层 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
回复力 (Ref.
120179): 中等的, 族群倍增时间最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
