1 Inii'.: a ml reproductive A recurrent nerve fron 



'loll follows I he ipsnphri^ll^, elldm- ill :i 

 ;::iii'_ili"ii upon tin- stomach. 



A modification of this plan is found in the Nautili. He 

 thick t ransverxe cord Miualed in front of the o'>< >pha-j ! 



- the cerebral u';i ULi'l i:i ; 1V< >m it s < .ul er angles t he opt je and 



torj nerves proceed. from its anterior ed^-e thosr ,!' tin- 



. 'I'lu- pnlul _Lj:in.u-li:i ||;I<-(M| dosr to tin- < n-l.r;il 



rlia, are nnitfil l.\ :i slnnlrr coniini^sinx' ; from tin-in :nv 



-ti|.|.lic(l .-ill tin- nerves of the tool or ;inns, of the I'mmr! :uil oi' 



T he pa rieto-spl&nchnic ganglia, lengthened into n thick 



I, united ;it c:ich end with the eerebrid u-;inLi-li;i, form an 



.li;ii:v;il riim'. Two l:rix- Li';inii'li;i ;ire found, one on 



t' tlu 1 stomach. 



We h;ive nli'endv. in spe.-ikin^ of the di_nvsti\- Q, shown 



the prol:ille sit nntioii of or^nns of !;isle ; it reninins to us to 

 in r< vir\v hrielly thosi- of Si^ht, of I le:irin<j,- nnd of Snu 11. 



Oniim* of N /'////. Tin 1 sessile eve is lod^c'd in orbitid 



cavities on either side of the head, in the dihraneliiates : in tlic 



branehiates \\ \^ elevaied upon peduncles. In the I'm iner 



the ce|.h:die ca i't i la;je. as we have ;dre:idy >eeii. partly 



it, whilst in some instances special orbital mrt ilau>-^ are 



pi-esent : the enclosure is eompleted l>y a liliroiis capsule 



unions with the ce])halie cart il:i_<Ljy. which heeoines t i-.-in-pa I'ent 



the eye and is likened to the cornea or even to the eyelid in 



This t ranspaivnt capsule (.resents severa I modit'n-a- 



titni>: it may lie entire <>r with a small jerforat ion as in the 



-poiU. in Sepia. Loli^o and other genera, eoii-t ii ut in- the 



division Mi/nfifn'iln of d'( )rln^ny : or it may have a wide opeiiinu. 



i he projection of tin- crystalline lens, as in Ommastrephes, 



Loli i lie ui,i,>i>:ii,ln of d'Orliijiny. It. is entiicly 



MI- in Nautilus. 

 \\ find in the diltrancii 1 'ar-'e portion of tin 



npied l>\ the optic -a n-1 i >n. liy ocular mu-cle- and 

 ly a white -'landulai >ul->t a nee. The >il\. lines luit 



not adhere to the ocular capsule ; it^ two layei^pa into 



