3i6 Journal of Comparative Neurology. 



Lateral line ganglia, black circles. 

 General cutaneous system, yellow. 

 Gasserian ganglion, black crosses. 

 Communis system, red. 

 Geniculate ganglion, red crosses. 



PLATE XXII. 



A series of eight transections through the ganglionic complex figured on 

 the preceding plate, x 23. The planes through which the sections pass are in- 

 dicated by th2 numbers following the descriptions, which should be compared 

 with those on the scales above and below Fig. i. 



Fig. 2. Section passing through the exit of the trigeminus and the audi- 

 tory and the yentral lateral line ganglia (962). 



Fig. J. Section passing through the caudal tip of the geniculate ganglion, 

 the auditory and the two lateral line ganglia (943). 



Fig, ^. Section passing through the origin of the first rootlet of the facial 

 root of the r. lateralis accessorius (918). 



Fig. J. Section passing through the second and third rootlets of the same 

 nerve (S98). 



Fig. 6. Section passing through the caudal edge of the Gasserian ganglion 

 and the cephalic tip of the geniculate ganglion (8S6) . 



Fig. 7. Section passing through the middle of the Gasserian ganglion (S72). 



Fig. S. Section taken a little farther forward (855). 



Fig. p. Section through the extreme cephalic tip of the Gasserian gan- 

 glion (847). 



