Stewart, Donald J. (2013-03-27). "Re-description of Arapaima agassizii (Valenciennes), a Rare Fish from Brazil (Osteoglossomorpha: Osteoglossidae)". Copeia. 2013 (1): 38–51. doi:10.1643/ci-12-013. ISSN0045-8511. S2CID84207464.
Stewart, Donald J. (2013-03-27). "Re-description of Arapaima agassizii (Valenciennes), a Rare Fish from Brazil (Osteoglossomorpha: Osteoglossidae)". Copeia. 2013 (1): 38–51. doi:10.1643/ci-12-013. ISSN0045-8511. S2CID84207464.
Stewart, Donald J. (2013-03-27). "Re-description of Arapaima agassizii (Valenciennes), a Rare Fish from Brazil (Osteoglossomorpha: Osteoglossidae)". Copeia. 2013 (1): 38–51. doi:10.1643/ci-12-013. ISSN0045-8511. S2CID84207464.