Nervous centres and nerves of Octopus vulgaris

Lateral view of the nervous centres and nerves of the right side of Octopus vulgaris (from a drawing by A.G. Bourne). bg, Buccal ganglion. cer, Cerebral ganglion. ped, Pedal ganglion. pl, Pleural, and visc.,visceral region of the pleuro-visceral ganglion. gang. stell, The right stellate ganglion of the mantle connected by a nerve to the pleural portion. n.visc, The right visceral nerve. n.olf, Its (probably) olfactory branches. n.br, Its branchial branches.
Source: 1911 Encyclopedia Britannica, Vol. 5, p. 698

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