Hypostomus kopeyaka Carvalho, Lima & Zawadzki 2010
Carvalho, Lima & Zawadzki 2010. Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil. Neotropical Ichthyology, 8(1), January-March 2010: 39-48