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Armbruster, J.W., Lujan, N.K. & Taphorn, D.C., 2007. Four new Hypancistrus (Siluriformes: Loricariidae) from Amazonas, Venezuela. Copeia 2007 (1): 62-79.
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Lujan, N.K., 2008. Description of a new Lithoxus (Siluriformes: Loricariidae) from the Guyana Highlands with a discussion of Guiana Shield biogeography. Neotropical Ichthyology 6: 413-418.
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