arnoldi, Chirodon Boulenger [G. A.] 1909:497 [Annals and Magazine of Natural History (Series 8) v. 4 (no. 24); ref. 14367] Not: Puerto Mexico [Coatzacoalcos], Veracruz State, Isthmus of Tehuantepec, Mexico [probably Panama]. Holotype (unique): BMNH 1909.10.5.1. Original genus should have been Cheirodon. •Valid as Cheirodon arnoldi Boulenger 1909 -- (Fink & Miller 1985:1058 [ref. 22491]). •Valid as Pseudocheirodon arnoldi (Boulenger 1909) -- (Zarske 2001:15 [ref. 25834], Malabarba in Reis et al. 2003:218 [ref. 27061]). Current status: Valid as Pseudocheirodon arnoldi (Boulenger 1909). Characidae: Cheirodontinae. Distribution: Atlantic and Pacific versant of Panama. Habitat: freshwater.