FIGURE 1 in Schweigger's (1812) chelonian types from the extinct eighteenth century Portuguese "Royal cabinet of natural history of Ajuda": some contributions for their identification and nomenclatural implications

FIGURE 1. The capture of turtles by Alexandre Rodrigues Ferreira's crew. The Portuguese naturalists can be seen in the boat at left, and the Amerindians are capturing specimens of Podocnemis expansa. Illustration adapted from Ferreira (1972).