arowana, Osteoglossum Jardine [W.] in Schomburgk 1841:205, Pl. 12 [The Natural history of fishes of Guiana; ref. 18707] Río Rupununi, Essequibo River, Rio Branco, Rio Negro, South America. No types known. •Synonym of Osteoglossum bicirrhosum (Cuvier 1829) -- (Ferraris in Reis et al. 2003:30 [ref. 27061]). Current status: Synonym of Osteoglossum bicirrhosum (Cuvier 1829). Osteoglossidae. Habitat: freshwater.