Portunidae Rafinesque, 1815

Liocarcinus depurator (Linnaeus, 1758) (Fig. 13 A, B); Callinectes sapidus Rathbun, 1896 (Fig. 13 C–F); Portunus (Portunus) pelagicus (Linnaeus, 1758)

The zygocardiac ossicle (V) has a semicircular impression antero ventral. The unpaired propyloric ossicle (VI) is inclined about 45° in the posterior direction; its dorso median margin has a short sharp point. The pectinal ossicle (VIII) is horseshoe-shaped with eight accessory teeth.