Oxydoras niger (Teffe, Brazil, October 9, 1865), Jacques Burkhardt, 9 October 1865

Taxonomic classification: animalia--doradidae--oxydoras niger (valenciennes 1821). Common name: ripsaw catfish. Date: 9 October 1865. Dimensions: 9 x 17 cm.. Medium: watercolor on paper. Collection: Harvard University. Oxydoras niger (Teffe, Brazil, 9 October 1865)