Keywords: EB1911 Cephalopoda Fig. 13.—Nervous system of Nautilus pompilius.jpg en Cephalopoda Fig 13 ”Nervous system of Nautilus pompilius from Encyclopædia Britannica 1911 1911-01-01 Encyclopædia Britannica 1911 - Cephalopoda article Hugh Chisholm editor other versions PD-old-70-1923 1911 Encyclopædia Britannica Cephalopoda |