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Fig. 1. (A) Diagram of the digestive tract of Nautilus pompilius according to Griffin (1900). CA, caecum; DH, ductus hepatopancreas; E, oesophagus, F, longitudinal fold of the rectum; J, jaw; I, intestine; LF, longitudinal folds; R, rectum; S, stomach; SG, salivary glands; T, typhlosolis; V, vestibulum. (B) Median section of Nautilus pompilius according to Naef (1913). BC, body cavity; BU, buccal complex; CR, crop; CA, caecum; CI cirrus; F, funnel; G, gills; HO, hood; H, heart; MA, mantle; O, ovary; PG, pedal ganglion; R, rectum; RA, renal appendages; S, stomach; SE, septum; SI, siphuncle; SG, supraoesphageal ganglion; VG, visceral ganglion.