ZOOLOGY 



SECT. 



supported by curved plates of cartillage forming a sort of orbit, 

 connected with the cranial cartilage. The significance of the 



aort, 



. riii." ( . Sepia cultrata, heart and main blood-vessels from the posterior aspect, ant. ao, 

 aort. aorta ; aort'. aboral aorta ; app. appendage of right branchial heart ; fjf\ br. r. right 

 efferent bi-anchial vessel ; ink. a. artery to ink-sac ; ink. r. vein from ink-sac ; /. aff. br, r. left 

 afferent branchial vessel; I. aur. left auricle; or. r. deep ovarian vein; or. ?>'. superficial 

 ovarian vein; pall. v. pallial vein; r. aid. v. right abdominal vein; r. aff. br. r. right 

 afferent branchial vein; r. cten. right ctenidium ; r. br. ht. right branchial heart; r. cv. 

 vena cava : ven. app. venous appendages ; rent, ventricle. 



ft. 



Flu. i;r,i;. Sepia cultrata, cephalic gang- 

 lia from the anterior aspect, ao. aorta ; 

 inif. buceal ganglion; ccr. bur. i-on. cere- 

 bro-bnrcal connective ; <'cr. g. ccrcln-al 

 ganglion ; <>/it. <i. optic ganglion (removed 

 on The left .side); o/>t. x/. optic .stalk ; 

 /mil. a. pallial nerve ; />!. <i. pleural gang- 

 lion ; vise. n. visceral nerves. 



br.n, 



conn 



pa.LL.n- 



1SCSC.7L 



Fin. i ;o7. Sepia cultrata, anterior view 

 of pedal and pleuro-visceral ganglia after 

 removal of the cerebral and optic, br. n. 

 brachial nerves; conn, connectives be- 

 tween the cerebral and the pedal and 

 pleuro-visceral ganglia (cut across); inf. n. 

 nerve to funnel ; pall. n. pallial nci-ves ; 

 vise. n. visceral nerves. 



various parts of the eye will not be fully understood till the struc- 

 ture of that of the Vertebrata has been studied. A transparent 



