Knowledge about the taxonomy and fish composition from the upper rio Paraúna (rio São Francisco basin) and upper rio Santo Antônio (rio Doce basin) in the middle portion of the Southern Espinhaço mountain range, state of Minas Gerais, Brazil is still incipient. Only few studies focusing on ichthyofaunistic diagnostic and species descriptions in the lower stretches of the rio Santo Antônio are available. Herein the aim was to provide a species list of the freshwater ichthyofauna from the headwaters of both basins in such region, and to verify the occurrence of threatened, exotic, and potentially new species. Sixty species were registered, with 34 associated to the upper rio Paraúna, and 40 to the upper rio Santo Antônio. Two species are included in some threatened category, three are exotics, and 14 represent potentially new species. An identification key of the fish species recorded in the area is also provided.

中文翻译：

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巴西米纳斯吉拉斯州埃斯皮尼亚索山脉中南部一个鲜为人知的地区的鱼群：诊断和识别关键

巴西米纳斯吉拉斯州埃斯皮尼亚索山脉南部中部的帕劳纳河上游（里约圣弗朗西斯科盆地）和圣安东尼奥河上游（里约多切盆地）的分类学和鱼类组成知识仍处于起步阶段。只有少数研究专注于圣安东尼奥河下游地区的鱼群学诊断和物种描述。此处的目的是提供该地区两个盆地源头淡水鱼群的物种清单，并验证受威胁、外来和潜在新物种的出现情况。登记了 60 种，其中 34 种与帕劳纳河上游有关，40 种与圣安东尼奥河上游有关。某些受威胁类别包括两个物种，三个是外来物种，14 个代表潜在的新物种。