Acarichthys heckelii (Lake January, Brazil, 27 October 1865), Jacques Burkhardt

Taxonomic classification: animalia--cichlidae--acarichthys heckelii (müller & troschel 1849). Common name: thread-finned cichlid. Original name: callichrous. Specimen collection date: 1865-10-27. Dimensions: 8 x 17 cm.. Medium: watercolor on paper. Collection: Harvard University. Acarichthys heckelii (Lake January, Brazil, 27 October 1865)