730 



ZOOLOGY 



SECT. 



cerJtuc.con, 



1SISC.71 



r.aljcl.a 



FIG. 616. Triton nodiferus. Nervous system, from the dorsal side. cer. bv.c. con. cerebro- 

 buccal connective ; cer. g. cerebral ganglion ; col. n. nerves to the columellar muscle ; infra, g. 

 infra-oasophageal visceral ganglion ; 1. abd. g. left abdominal ganglion ; I. br. n. left branchial 

 nerve ; 1. br. n'. nerves to bronchia and osphradium ; ?. mant. n. left mantle-nerve ; opt. n. 

 optic nerve ; ped. con. cerebro-pedal and pleuro-ped.il connectives ; ped. g. pedal ganglia ; pi. g. 

 pleural ganglion ; r. abd. g. right abdominal ganglion ; r. br. n. right branchial nerve ; r. bite, 

 gang, right buccal ganglion ; r. mant. n. right mantle-nerve ; supra. <j. supra-intestinal visceral 

 ganglion ; tent. n. nerve to tentacle ; vise. n. visceral nerve-branches 



