Isbrueckerichthys epakmos ^ZBK:

Brazil: São Paulo: Tapiraí: rio Ribeira de Iguape drainage: MZUSP 79804, holotype, male, 103.1 mm SL; rio Verde at Piúva, on road to Rio Verde, 23º58'22"S 47º34'23"W. - MZUSP 79498, paratypes, 4 (1) 33.2-66.7 mm SL; collected with the holotype. - MZUSP 78444, 6 (4) 28.1-78.2 mm SL; Ibiúna: creek tributary of rio Juquiá at Cachoeira da Fumaça, 24º2'18"S 47º14'53"W. - MCP 28276, 63 (20) 39.5-83.3 mm SL; Tapiraí: rio Coruja, tributary to rio Juquiá, on road from Tapiraí to Juquiá near Cachoeira do Chá, 24°1’47”S 47°34’29”W.