分類 / Names
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Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes)
Etymology: Archolaemus: Greek, archo = anus + Greek, laimos = throat (Ref. 45335); ferreirai: Named for Efrem Ferreira of the Instituto Nacional de Pesquisas da Amazônia, one of the collectors of the type series, in recognition of his many contributions to the understanding of the Amazonian fish fauna..
Environment: milieu / climate zone / depth range / distribution range
生態学
; 新鮮な水 底生の漂泳性. Tropical
South America: Rio Mucajaí and Rio Uraricoera in the north-eastern portions of the Amazon basin, Brazil.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 34.2 cm TL オス/雌雄の選別がない; (Ref. 93148)
簡単な記述
検索表 | 形態学 | 形態計測学
臀鰭: 190 - 222. Distinguished from other congeners by having the following combinations of characters: length of the gape with the rictus falling short of the vertical through the posterior naris; the length of the coronomeckelian bone 50% or more the length of Meckel’s cartilage; the length of the posterior ceratohyal approximately the same length as the ventral hypohyal; 10-14 scales above the lateral line at the midbody; the form of the premaxilla with the anteroposterior length greater than the transverse width; the distribution of the teeth on the dentary restricted to anterior one-half or slightly more of the dorsal margin; five or six teeth arranged in single row on the internal surface of the endopterygoid; presence of a narrow dark stripe along the lateral line and a broad band of dusky to dark pigmentation overlying the basal pterygiophores of the anal fin; 18-21 pectoral-fin rays; 190-222 anal-fin rays (Ref. 93148).
The type locality, Rio Mucajaí, is characterized by rapid flowing water and a 20 m high waterfall. The species was encountered above these falls in an area with many rapids and no still backwaters (Ref. 93148).
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 幼生
Vari, R.P., C.D. de Santana and W.B. Wosiacki, 2012. South American electric knifefishes of the genus Archolaemus (Ostariophysi, Gymnotiformes): undetected diversity in a clade of rheophiles. Zoological Journal of the Linnaean Society 165:670-699. (Ref. 93148)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00363 (0.00172 - 0.00768), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.1 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (24 of 100).
