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Emperor nautilus shell and section through shell showing chambers, Nautilus pompilius (Great nautilus, Nautilus pompilius).
Cross-section through chambered nautilus shell, Nautilus pompilius (Nautilus crassus) 1, small nautilus, Nautilus pompilius suluensis 2, greater argonaut with narrow keel, Argonauta argo (Nautilus papyraceus) 3, and greater argonaut with broad keel 4. Handcoloured copperplate engraving by Georg Wolfgang Knorr from his Deliciae Naturae Selectae of Kabinet van Zeldzaamheden der Natuur, Blusse and Son, Nuremberg, 1771.
Section through the shell of a nautilus Nautilus pompilius
Nautilus shell, Section through the shell of anautilus
CHAMBERED or PEARLY NAUTILUS Nautilus pompilus cross section through shell
Section through the shell of a chambered nautilus Nautilus pompilius
Nautilus shell, Section through the shell of anautilus
Emperor nautilus shell and section through shell showing chambers, Nautilus pompilius (Great nautilus, Nautilus pompilius) Illustration drawn and engraved by Richard Polydore Nodder. Handcoloured copperplate engraving from George Shaw and Frederick Nodder's The Naturalist's Miscellany, London, 1801.
Section through the shell of a chambered nautilus Nautilus pompilius
Nautilus shell, Section through the shell of anautilus
Cross-section through chambered nautilus shell, Nautilus pompilius (Nautilus crassus) 1, small nautilus, Nautilus pompilius suluensis 2, greater argonaut with narrow keel, Argonauta argo (Nautilus papyraceus) 3, and greater argonaut with broad keel 4. Handcoloured copperplate engraving by Georg Wolfgang Knorr from his Deliciae Naturae Selectae of Kabinet van Zeldzaamheden der Natuur, Blusse and Son, Nuremberg, 1771.
chambered nautiluses, pearly nautiluses (Nautilus spec.), section through shell.