apocremnus Brazil Fig. 8 Eurycheilichthys apocremnus, new species, holotype, MCP 40660, 47.0 mm SL, male, Brazil, Rio Grande do Sul, Barros Cassal, creek tributary to rio Fão. castaneus Brazil Fig. 9 Eurycheilichthys castaneus, new species, holotype, MCP 40664, 48.1 mm SL, male, Brazil, Rio Grande do Sul, Marau, arroio Burro Preto, tributary to rio Guaporé. Lateral view of right side and image digitally inverted. coryphaenus Brazil Fig. 10 Eurycheilichthys coryphaenus, new species, holotype, MCP 40665, 46.7 mm SL, female, Brazil, Rio Grande do Sul, Tainhas, arroio Contendas. limulus Brazil Fig. 6 Eurycheilichthys limulus, MCP 41143, 44.6 mm SL, male, Brazil, Rio Grande do Sul, Julio de Castilhos, arroio Passo dos Buracos. luisae Brazil Fig. 12 Eurycheilichthys luisae, new species, holotype, MCP 40662, 42.5 mm SL, male, Brazil, Rio Grande do Sul, Arvorezinha, arroio Três Pontes.

pantherinus Brazil Fig. 4 Eurycheilichthys pantherinus, MCP 22373, 46.3 mm SL, male, Brazil, Rio Grande do Sul, São José dos Ausentes, rio Silveira at Silveira. paucidens Fig. 13 Eurycheilichthys paucidens, new species, holotype, MCP 40661, 61.8 mm SL, female, Brazil, Rio Grande do Sul, Muitos Capões, arroio Tavoqua. planus Brazil Fig. 14 Eurycheilichthys planus, new species, holotype, MCP 40663, 49.3 mm SL, male, Brazil, Rio Grande do Sul, Guabiju, rio da Prata at Passo do Respraiado. vacariensis Brazil Fig. 15 Eurycheilichthys vacariensis, new species, holotype, MCP 40659, 47.6 mm SL, male, Brazil, Rio Grande do Sul, Muitos Capões, arroio Espeto or rio Soares.