Um.ve stib,--- 
a 
---pars Sup. 
4Amm. 7mm 
===--- pars inf. 
Bays ip: pars sup. 
4 
Js—n.ve stib- <a / 
ae pars ink 
s 
: ¢ 
\ 
pars inf, ‘ 
I N 
\ 
9mm—_!|_— 
‘Me Goce 
--gang. spirale -- - - 
ramp. sup... rei = ir tes 
--—n.vestib— —- -r amp. lat. 
ramp. lat-.__ A eee B 
“Q |S ae eee mutinniGe 
r.utrl C=----= Yy 
tS. pe Sacc. 
Qe 
vas Ne Su) 2Omm: gost 
aS ‘ ° 
2 am 
* = 
Pose =: 
‘ -gangn 7 
ooh] Spiele ta ae 
r. amp.sup., /camp. sup. 
/ 
“ lat 
ramp.lat.~-__ Sie ee 
Gutric<_ 
30mm: 
MEDIAN VIEW LATERAL VIEW 
Fig. 5. Stages in the differentiation of the acoustic nerve complex. Vesti- 
bular ganglion shown by fine dots, and spiral ganglion by large dots. 
