364 



HITCHCOCK'S ANATOMY 



669. Nervous System of Molluscs —Cephalic Gang- 

 lia,— Pedal Ganglia.— Par ie to - Splanchnic Ganglia. 

 — In most of the Molluscs the nervous ^system is well de- 



FlG. 331. 



Nervous System of Argonauta Argo. A, As seen in front. B, As viewed in profile, 

 showing the relations of the Nervous Centers to the Buccal Mass. a, The Esophagus b, 

 and the Eye c. a, Cephalic Ganglion. &, Buccal Ganglion, c, Sub-Esophageal Gang- 

 lion, d, d, Stellate Ganglia of the Mantle, e, Visceral Ganglion, f, Nerves of the 

 Arms, with Ganglionic Enlargements, g, Optic Nerves, h, h, Eyes, i, % Branchial 

 Nerves with their Ganglia. 



