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俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
七鰭鯰科 (Three-barbeled catfishes)
Etymology: Chasmocranus: Greek, chanos, -eos, ous, and chasma, -atos = abyss, mouth opened, inmensity + Greek, kranion = skull (Ref. 45335).
More on author: Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Mana and Marowijne/Maroni river basins, and Potaro River.
南美洲: Mana 與 Marowijne/Maroni 河流域 , 與 Potaro 河。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 7.9 cm SL 雄魚/尚未辨別雌雄; (Ref. 35381)
Rather rare (7 to 8 specimens known) maybe due to the very specialized biotope in which Heptapterus longior might be present. It is therefore poorly identified, also considering that the original description, rather poor, identifies it only in comparison with H. longior starting from the size of the adipose fin and the more pointed caudal fin (Ref. 35381).
相當稀有的 (知道的 7 到 8件標本) 也許由於非常特殊化的生存環境在那一個 Heptapterus longior 可能在場。 因此它是貧乏地鑑定, 也就而論最初的描述, 相當少量, 鑑定它用脂鰭與那比較尖的尾鰭 H. longior 出發從大小只在比較中.(參考文獻 35381)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: Mana 與 Marowijne/Maroni 河流域 , 與 Potaro 河。
Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36914)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-2)
無危 (LC) ; Date assessed: 23 November 2020
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00794 (0.00374 - 0.01688), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).