Description of Plates. 



List of Reference letters. (Capitals are used only for parts of the 

 perilymphatic system.) 



notochord. 



operculum (stapes). 



parasphenoid. 



pars basilaris. 



posterior vertical semicircular 

 canal. 



pharynx. 



pia mater. 



pigment. 



pars neglecta. 



recessus partis basilaris. 



recessus partis neglectae. 



recessus fenestrae vestibuli. 



sacculus. 



"Spindelknorpel" (dense speciali- 

 zed perilymphatic tissue). 



spatium meningeale. 



sinus utriculi posterior. 



Saccus perilymphaticus. 



spatium sacculare. 



sinus utriculi superior. 



strand of fibres. 



band of fibres in section. 



epithelial wall of sacculus. 



wall of trachjeal chamber. 



tympanal area. 



utriculus. 



wall of utriculus. 



a.c 



anterior vertical semicircular 



not 





canal. 



op 



a.p 



ampulla of posterior vertical 



par 





semicircular canal. 



p.b 



an 



branch of auditory nerve. 



p.c 



b 



basal wall of auditory capsule. 





d.ao 



aortic arch of one side. 



2)h 



D.P 



ductus perilymphaticus. 



pi 



D.R 



ductus reuniens. 



pig 



du 



dura mater. 



p.n 



ep 



epithelium of roof of pharynx. 



KB 



F.I 



foramen perilymphaticum in- 



R A 





ferius. 



R. V 



F.P 



foramen perilymphaticum (Uro- 



sac 





dela). 



sk 



F.S 



foramen perilymphaticum su- 







perius. 



S.M 



f.m 



fissura metotica. 



s.p 



h.c 



horizontal semicircular canal. 



S.P 



lag 



lagena. 



S.S 



lag.w 



lagena wall. 



s.u.p 



ig 



lung. 



St 



mac 



macula acustica. 



St' 



med 



inner wall of auditory capsule. 



S.1V 



m.o 



medulla oblongata. 



tr 



m.t 



closing membrane of fenestra 



iy 





vestibuli (foramen ovale). 



ut 



mus 



musculus levator scapularis su- 

 perior. 



ut.rv 



