Ricola macrops  Ricola macrops is the only species of the monotypic genus Ricola, a genus of the family Loricariidae of catfish (order Siluriformes). Ecological and behavioral data are unavailable for this species. This species is native to Argentina and Uruguay where it occurs in the lower Paraná River basin. "R. macrops" probably inhabits sandy substrates with flowing waters. "R. macrops" reaches a length of SL. It shares features with representatives of different groups within Loricariini. For example, it possesses conspicuous fringed barbels on the lower lip, a feature shared by the representatives of the "Pseudohemiodon" group. It also bears numerous papillae on the inner surfaces of the lips and numerous straight bicuspid teeth that are characteristic of the "Rineloricaria" group.