分類 / Names
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: Phenacorhamdia: Greek, phenax, -akos = deceptive + Brazilian vernacular name, Nhamdia/Jamdia (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的. 熱帶
South America: Orinoco River basin, Venezuela.
南美洲: 奧里諾科河河流域。
大小 / 重量 / 年齡
Maturity: Lm ?  range ? - ? cm
Max length : 4.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 36914)
簡短描述
型態特徵 | 形態測量圖
背的軟條 (總數): 7; 臀鰭軟條: 12 - 15; 脊椎骨: 41 - 43. This species differs from its congeners by the following set of characteristics: maxillary barbel reaching three fourths along pectoral fin; outer mental barbel not reaching pectoral-fin base; gill rakers on first branchial arch 5-7; vertebrae 41-43; pleural ribs 9; pectoral fin with modally seven branched rays; first basal radial of dorsal fin inserted posterior to vertebrae 11-12; anal fin with 12-15 rays (7-9 branched); caudal-fin lobes pointed; upper caudal-fin lobe with 7 branched rays; lower caudal-fin lobe markedly longer than upper caudal-fin lobe (29.8-33.5% of SL, 1.5 times in HL); pigmentation of the body uniform; cleithral width, 13.6-14.5% of SL; anal-fin base, 12.1-14.8% of SL; caudal peduncle depth, 5.7-6.9% of SL; head length, 20.1-22.2% of SL, 4.5-4.9 times in SL (Ref. 78618).
Inhabits rivers (Ref. 6868).
棲息於河。 (參考文獻 6868)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
南美洲: 奧里諾科河河流域。
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)
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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=0.00776 (0.00362 - 0.01664), b=2.98 (2.80 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).