Keywords: FMIB 51704 Polypterus congicus, a Crossopterygian fish from the Congo River Young, with external gills.jpeg check categories 25 August 2015 2 Polypterus congicus a Crossopterygian fish from the Congo River Young with external gills Subject Polypteriformes Tag Fish 1907 Cite book Fishes Jordan David Starr New York City NY Henry Holt and Company 1907 Fig 167 Creator David Starr Jordan PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 51704 Images from the Freshwater and Marine Image Bank to check David Starr Jordan Polypterus |