分类 / 名称
俗名 | 同种异名 | Catalog of Fishes(属, 种) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes) >
Heptapteridae (Three-barbeled catfishes)
Etymology: Cetopsorhamdia: Greek, ketos = a marine monster, whale + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
环境：氛围 / 气候带 / 深度上下限 / 分布范围
生态学
; 淡水 居于水底的; pH range: 7.5 - 7.5. 熱帶; 0°S - 4°S, 78°W - 72°W
South America: Napo River basin, Ecuador.
南美洲: Napo 河流域。
大小 / 重量 / 年龄
成熟度: Lm ? range ? - ? cm
Max length : 4.0 cm SL 雄鱼/尚未辨别雌雄; (Ref. 36171)
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) : 11; 臀棘: 0; 臀鳍软条: 9 - 11; 脊椎骨: 37. Flexible, unbranched first ray and ten branched rays on its dorsal fin; dorsal fin situated relatively far posteriorly; pterygiophore of anterior dorsal fin ray articulating with neural spine of tenth vertebra; blade like neural spines of vertebrae five through nine extend dorsally, diverging at their dorsal ends to form a double row of ossifications just ventral to skin between supraoccipital and dorsal fin origin; a slender supraneural at posterior end of this v-shaped predorsal trough has attached muscles extending anteriorly between bifid neural spines to supraoccipital; maxillary barbel very long , reaching posteriorly beyond anal fin base. Distal portions of dorsal, adipose and anal fins, and most part of caudal fin almost unpigmented.
Body shape (shape guide): elongated.
柔韧有弹性的, 不分枝的第一个鳍条与十个分支条在它的背鳍; 相当远在后部被位于的背鳍; 连接第十个脊椎骨的髓棘的前面背鳍鳍条的支鳍骨; 叶片像脊椎骨五的髓棘经过九背面延伸, 在他们的背部末端分开形成一个两列的成骨正好腹对在上枕骨与背鳍起点之间的皮肤; 在这一 v 的后端的细长 supraneural-形状的前背沟槽已经附上在对上枕骨的两裂髓棘之间前面地延伸的肌肉; 上颌骨触须非常长的 , 在后部地达到超过臀鳍基底。 远端部份背部的, 脂鳍与臀鳍 , 与尾鳍的大多数部份几乎没有颜色。
生命周期和交配行为
成熟度 | 繁殖 | 产卵场 | 卵 | 孕卵数 | 仔鱼
南美洲: Napo 河流域。
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)
世界自然保护联盟红皮书 (Ref. 130435: Version 2025-2 (Global))
人类利用
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基于模型的估算
系统发育多样性指数 (参考文献
82804): PD
50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00379 - 0.01743), b=2.97 (2.79 - 3.15), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
营养阶层 (参考文献
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
渔业脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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