figure 3 in The sawFIsh (Rhinopristiformes, Pristidae) rostrum displayed in the "Basilica Santuario del Carmine Maggiore" in Naples, Italy: A long story of legends and taxonomic errors

figure 3 Principal component analysis (pca) performed on five standardized rostral characters (srl, prw, drw, ptg, dtg) using measures obtained from the rostrum of the bscm (pink square) and data from Seitz & Hoover (2017) for isolated rostra of A. cuspidata (in red), P. pristis (in yellow), P. pectinata (in blue) and P. zijsron (in green). Each rostrum is indicated with a dot, while groups of rostra of the same species are represented by a polygon.