Field inventory reveals high diversity of new species of mountain catfishes, genus Cambeva Katz, Barbosa, Mattos & Costa, 2018 (Siluriformes: Trichomycteridae), in south-eastern Serra Geral, southern Brazil

During a field inventory in the southeastern nucleus of Serra Geral, southern Brazil, ten undescribed species Cambeva Katz, Barbosa, Mattos & Costa, 2018 were found small area about 2800 km2. These are herein formally described: diffusa n. sp., duplimaculata grisea imaruhy longipalata notabilis orbitofrontalis panthera pericoh and urubici sp. They diagnosed based on external morphology osteological characters, which indicate that they belong to five intrageneric lineages. Most occur areas, some rare. Five these here described endemic upper Rio Uruguai basin, western open plateau belonging Araucaria Forest biogeographical province, other Araranguá Tubarão basins, eastern forested Brazilian Atlantic province. The reported data suggest lineages adapted live specific altitudinal zones, including occurrence three new closely related C. tropeira (Ferrer Malabarba, 2011) between 905 1325 m asl, contrasting with brachykechenos 2013) 155 300 asl. Finally, we compare studied another mountain area, Maciço de Itatiaia da Mantiqueira south-eastern where high number have been recorded.