Classificazione / Nomi
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Gymnotiformes (Knifefishes) >
Sternopygidae (Glass knifefishes) > Eigenmanninae
Etymology: Archolaemus: Greek, archo = anus + Greek, laimos = throat (Ref. 45335); luciae: Named for Lucia Py-Daniel of the Instituto Nacional de Pesquisas da Amazônia, in recognition of her many contributions to the knowledge of the fishes of the Amazon and her assistance to the authors over the years.
Eponymy: Dr Lúcia Helena Rapp Py-Daniel is a Brazilian ichthyologist. (See Py-Daniel) (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
; acqua dolce benthopelagico. Tropical
South America: Rio Jari, Rio Trombetas and Rio Tapajós basins in eastern Amazon; Rio Araguari, Brazil.
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 49.7 cm TL maschio/sesso non determinato; (Ref. 93148)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Raggi anali molli: 192 - 213. Distinguished by having the following combination of characters: depth of the caudal filament 3.3-4.8% CL; length of the caudal filament 28.6-46.1% LEA; length of the coronomeckelian bone 50% or more the length of Meckel’s cartilage; length of the posterior ceratohyal approximately the same length as the ventral hypohyal; gape relatively long and the rictus extending posteriorly beyond the vertical through the posterior naris; teeth between seven and ten irregularly distributed on the internal surface of the endopterygoid; anteroposterior length of premaxilla greater than the transverse width; teeth on the dentary restricted to the anterior one-half or slightly more of the dorsal margin; 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; 19-21 pectoral-fin rays; and 192-213 anal-fin rays (Ref. 93148).
Body shape (shape guide): elongated.
Occurs in swift-flowing water habitats. Also found in main stream of shallow rapids and
small waterfalls, always over a rocky bottom (Ref. 93418).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
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)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio.
82804): PD
50 = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00355 (0.00161 - 0.00782), b=2.97 (2.78 - 3.16), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Livello trofico (Fonte Biblio.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Vulnerabilità della pesca (Ref.
59153): Moderate vulnerability (40 of 100).
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