compressus, Melanocharacidium Buckup [P. A.] 1993:114, Fig. 5 [Ichthyological Exploration of Freshwaters v. 4 (no. 2); ref. 20831] Backwater of Río Orinoco, 3°04'N, 66°28'W, about 1/2 hour upstream from Isla Temblador, Amazonas, Venezuela. Holotype: ANSP 161666. Paratypes: ANSP 159790 (14, 2 c&s), 159796 (1). Once named compressus in original description, a typographical error. •Valid as Melanocharacidium compressum Buckup 1993 -- (Buckup in Reis et al. 2003:92 [ref. 27061] as compressus, Buckup 2024:307 [ref. 40817]). Current status: Valid as Melanocharacidium compressum Buckup 1993. Crenuchidae: Characidiinae. Distribution: South America: upper Orinoco River basin, Venezuela. Habitat: freshwater.