axelrodi, Cheirodon Schultz [L. P.] 1956:42, Fig. [Tropical Fish Hobbyist v. 4 (no. 4); ref. 12224] Stream near Tomar, Rio Negro, near Porto Velho, Brazil. Holotype: USNM 164483. Paratypes: USNM 164484 (1). Type catalog and locality information: Vari & Howe 1991:14 [ref. 19022]. •Valid as Paracheirodon axelrodi (Schultz 1956) -- (Fuller et al. 1999:186 [ref. 25838], Malabarba in Reis et al. 2003:152-153 [ref. 27061], Mirande 2010:510 [ref. 31006], Marshall et al. 2012:378 [ref. 31785], Ohara et al. 2017:11 [ref. 35144], DoNascimiento et al. 2017:52 [ref. 35633], Bittencourt et al. 2020:5 [ref. 37634], Sánchez-Bernal et al. 2023:5 [ref. 40514], Marinho 2024:247 [ref. 40817]). Current status: Valid as Paracheirodon axelrodi (Schultz 1956). Acestrorhamphidae: Megalamphodinae. Distribution: South America: upper Orinoco and Negro River basins (Brazil, Colombia and Venezuela). Habitat: freshwater.