DEVELOPMENT OF THE SACCUS ENDOLYMPHATICUS ZO 
The lumen of the tubuli is filled with a liquid in which many 
lime crystals are suspended. Carus (’41) was the first to notice 
the similarity of these crystals to those in the labyrinth proper. 
He writes as follows: 
l.opt. ven4 
dien: ‘g.prc. Spice 
pe vent. 
Sp. (oh, 
Lateral view of larva. (Stage IV.) g. pr. c., ganglion prooticum com- 
Fig. 18 Lateral view of larva. (Stage V.) 
pr. vent., processus ventralis. 
Fig. 19 Lateral view of larva. (Stage VI.) 
