FIGURE 8 in Intraspecific variation of the caudal fin skeleton in Osteoglossum bicirrhosum Cuvier 1829 (Teleostei: Osteoglossomorpha: Osteoglossidae)

FIGURE 8. Caudal skeleton of Osteoglossum bicirrhosum: a) "Typical" condition. ["A"]. b) Schematic drawings of the main patterns ["A", "B", "C", "D", "E" and "F"] found in specimens from the three selected localities [Negro, Trombetas and Tapaj®AEs rivers]. Varying structures are highlighted in blue. Bone is shown in white, and cartilage in black. Anterior faces left. c) Histograms showing the distribution [expressed in percentage] of the varying endoskeletal patterns in specimens from the three localities.