Rineloricaria quadrensis ^ZBK:

MZUSP 14218, paratype, (1) 142.0 mm SL, Lagoa dos Quadros, Osório, Rio Grande do Sul, Brazil ; MCP 21195, paratypes, (3) 113.9-126.8 mm SL, rio Tramandaí, Rio Grande do Sul, Brazil, September 1998, J. Pezzi & Gelain .