508 ANIMAL PHYSIOLOGY. 
Fia. 357.—Nervous system of common cuttle-fish, Soe officinalis (after Owen). 1, double 
auprasesephnscel ganglion ; p, p, cut surfaces of the cartilaginous cranium ; 2,2, optic . 
34 gangs ; 7,8, ganglia in connection with pharynx 
and mouth ; 13, 13, great motor nerves of mantle, etc., with other ganglia ; 14, c, c, respira- 
eee 
Fic. 358.—Brain and cranial nerves of perch, seen from the side (after Gegenbaur and Cuvier). 
A, cerebral lobe with olfactory ganglion in front ; B, optic lobe: C, cerebellum; D, me- 
dulla oblongata ; J—VIII, nerves in usual order; K, lateral branch of vagus ; 1, upper 
twig of same; m, dorsal branch of trigeminus, joined by n, dorsal branch of vagus; 
a, 8, y, three branches of trigeminus ; 6e, facial nerve ; A, branchial branches of vagus. 
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