南美拟石钩鲇，为辐鳍鱼纲鲇形目甲鲇科的其中一种，为热带淡水鱼，分布于南美洲奥里诺科河上游、黑河上游及Casiquiare河流域，身体深灰色灰色黑色的有白色的斑点，背鳍硬棘2，背鳍软条7-8枚，臀鳍硬棘1枚，臀鳍软条4-5枚，体长可达10.1公分，栖息在底层水域，生活习性不明。
参考文献
- Froese, R. & Pauly, D. (eds.) (2014). Pseudolithoxus dumus. FishBase. Version 2014-11.
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