r7o 



ZOOLOGY 



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

 connected with the cranial cartilage. The significance of the 



™&*- 



aorl 



oi/.i; 



Fin. 66. r ). — Sepia cultrata, heart and main blood-vessels from the posterior aspect, ant. no, 

 aorl. aorta ; aort'. aboral aorta ; app. appendage of right branchial heart ; eff. br. v. right 

 efferent branchial vessel ; ink. a. artery to ink-sac ; ink. v. vein from ink-sac ; I. aff'. br. r. left 

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

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

 afferent branchial vein ; r. cten. right ctenidium ; r. br. lit. right branchial heart ; r. car. 

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



bice 

 cer.bzccjcon 



a.LL n. 



vlsc.jl 



Fio. 600.— Sepia cultrata, cephalic gang- 

 lia from the anterior aspect, ao. aorta ; 

 buc. buccal ganglion ; cer. buc. con. cere- 

 bro-buccal connective ; cer. g. cerebral 

 ganglion ; opt. ci. optic ganglion (removed 

 on the left side) ; opt. st. optic stalk ; 

 pall. n. pallial nerve ; pi. p. pleural gang- 

 liop ; rite. n. visceral nerves. 



Fio. GOV.— 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 nerves ; 

 rise. 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 



