diabolicus, Urinophilus Myers [G. S.] 1927:132 [Bulletin of the Museum of Comparative Zoology v. 68 (no. 3); ref. 3096] Iquitos, Peru. Holotype (unique): CAS 59940 [ex IU 17701]. Type catalog: Ferraris 2007:411 [ref. 29155]. •Valid as Urinophilus diabolicus Myers 1927 -- (Ortega & Vari 1986:16 [ref. 9708]). •Valid as Plectrochilus diabolicus (Myers 1927) -- (de Pinna & Wosiacki in Reis et al. 2003:277 [ref. 27061], Ferraris 2007:411 [ref. 29155], Meza-Vargas et al. 2021:24 [ref. 39298]). Current status: Valid as Plectrochilus diabolicus (Myers 1927). Trichomycteridae: Vandelliinae. Distribution: South America: Amazon River basin (Brazil and Peru). Habitat: freshwater.