orinoco, Micromyzon Carvalho [T. P.], Lundberg [J. G.], Baskin [J. N.], Friel [J. P.] & Reis [R. E.] 2016:39, Figs. 1-10 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 165 (no. 1); ref. 35024] Río Orinoco, deep channel upstream of Los Barrancos, circa 183 nautical miles from sea buoy in Boca Grande navigation channel, Anzoátegui, Venezuela, 08°21'N, 62°43'W. Holotype: ANSP 198335. Paratypes: ANSP. •Valid as Micromyzon orinoco Carvalho, Lundberg, Baskin, Friel & Reis 2016 -- (Lasso & Taphorn in Lasso & Morales-Betancourt 2022:134 [ref. 40783]). Current status: Valid as Micromyzon orinoco Carvalho, Lundberg, Baskin, Friel & Reis 2016. Aspredinidae: Hoplomyzontinae. Distribution: South America: lower Orinoco River (Venezuela). Habitat: freshwater.