Classification / Names
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Teleostei (teleosts) >
Characiformes (Characins) >
Acestrorhamphidae (American tetras) > Megalamphodinae
Etymology: Megalamphodus: Greek, megas, megalos = great + Greek, amphi = in both sides + Greek, odous = teeth (Ref. 45335).
Eponymy: Edward Copeland was a volunteer on the Thayer Brazilian Expedition (1865) that collected the type specimens. [...] (Ref. 128868), visit book page.
Issue
Ornamental species. See Weitzman & Palmer (1997: 226) and Planquette et al. (1996: 288-289) for comments.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; benthopelagic. Tropical; 24°C - 28°C (Ref. 13371)
South America: Upper Solimões, Mana and Approuague River basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.0 cm TL male/unsexed; (Ref. 116983)
Lateral line incomplete.
Body shape (shape guide): fusiform / normal.
Frequently found in waters with slow current or the counter current zones of small creeks with clear water and sandy bottom. It occupies the upstream portion of rivers before a waterfall. Its capture in great numbers suggest a gregarious behavior (Ref. 12225). Its reproduction in captivity has not been reported (Ref. 27188). Maximum length 5.0 SL (Ref. 12225).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Planquette, P., P. Keith and P.-Y. Le Bail, 1996. Atlas des poissons d'eau douce de Guyane. Tome 1. Collection du Patrimoine Naturel Volume 22, MNHN, Paris & INRA, Paris. 429 p. (Ref. 12225)
IUCN Red List Status (Ref. 130435: Version 2025-2)
Threat to humans
Harmless
Human uses
Fisheries: commercial; aquarium: commercial
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