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Gymnotiformes (Knifefishes) >
Rhamphichthyidae (Sand knifefishes)
Etymology: Rhamphichthys: Greek, rhamphos = bill, peak + Greek, ichthys = fish (Ref. 45335).
Eponymy: Carlos Hahn was an Argentine aquarist who collected specimens in the Corrientes area, where he lived. He and the author had a long-standing relationship and correspondence. The holotype of the catfish species came from Hahn’s collection. (Ref. 128868), visit book page.
Milieu: milieu / Klimaatzone / Diepte / verspreidingsgebied
Ecologie
; zoet water benthopelagisch. Temperate
South America: Paraná River basin (Ref. 30500). Reported from the Uruguay River (Ref. 79585).
Grootte / Gewicht / Leeftijd
Maturiteit: Lm ?  range ? - ? cm
Max length : 26.7 cm TL mannelijk / geslacht onbekend; (Ref. 30500)
Reported to reach 70 cm TL (Ref. 81048).
Levenscyclus en paargedrag
Maturiteit | Voortplanting | Paaien | Eieren | Fecunditeit | Larven
Campos-da-Paz, R. and H.-J. Paepke, 1994. On Sternarchorhamphus hahni, a member of the rhamphichthyid genus Rhamphichthys (Ostariophysi: Gymnotiformes). Ichthyol. Explor. Freshwat. 5(2):155-159. (Ref. 30500)
Status op de Rode Lijst van het IUCN (Ref. 130435: Version 2025-2 (Global))
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Schattingen op basis van modellen
Fylogenetische diversiteitsindex (Ref. 82804) |
PD50 = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00269 (0.00108 - 0.00670), b=3.07 (2.85 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisch niveau (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Kwetsbaarheid van de visserij (Ref. 59153) |
Low vulnerability (14 of 100). 🛈 |