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分類 / Names 共通名の | 類義語 | Catalog of Fishes(部類, 種) | ITIS | CoL | WoRMS | Cloffa
> Characiformes (Characins) > Anostomidae (Headstanders)
Etymology: Megaleporinus:Name from Greek 'mega' meaning large or largest, plus Leporinus, the genus which most species (now in this genus) were previously assigned; refrring to the large size of most congeners. More on author: Valenciennes.
Environment: milieu / climate zone / 深さの範囲 / distribution range 生態学
South America: Known only from the Rio Jequitinhonha and Rio Pardo in Brazil. Record from São Francisco River, the type locality in the original description, seems to be erroneous (Ref. 93038). Reported from Paraná and La Plata basins (Ref. 36801).
Length at first maturity / サイズ / 重さ / 年齢
成熟: Lm20.8 range ? - ? cm Max length : 50.0 cm TL オス/雌雄の選別がない; (Ref. 115169)
背鰭 (合計) : 11 - 12; 臀鰭: 10 - 11; 脊つい: 34. Distinguished from all species of Leporinus , exceptL. amblyrhynchus , by having
the combination of three teeth on each premaxilla and dentary (tooth formula 3/3) and 12 scale rows around the caudal peduncle (vs. tooth formulae 4/4, 3/4 or 4/3, and 14 or 16 scale rows around the caudal peduncle). Can be diagnosed from Leporinus amblyrhynchus by having three dark blotches on the lateral line (vs. dark longitudinal stripe along the lateral line). Additional characters useful to diagnose Leporinus elongatus include 36 or 37 pored scales on the lateral line, 4 scales rows from the dorsal fin origin to the lateral line and 4 from the lateral line to the base of the pelvic fin (Ref. 93038). Body shape (shape guide): elongated; Cross section: compressed.
Distinct pairs breed on densely grown weedy places (Ref. 205).
Life cycle and mating behavior 成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Distinct pairs breed on densely grown weedy places (Ref. 205).
Ramirez, J.L., J.L.O. Birindelli and P.M. Galetti Jr., 2017. A new genus of Anostomidae (Ostariophysi: Characiformes): Diversity, phylogeny and biogeography based on cytogenetic, molecular and morphological data. Molecular Phylogenetics and Evolution, 107: 308-323. (Ref. 113781)
