BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 21. AFD. IV. N:0 3. 15 
Fig. 
02 Mmm: 
pik 
Fio. 
8 
Plate II. 
Transversal section af the left edge of a cornu, nearly 
behind the orbit, magnif. 559/,. Same specimen as fig. 4, 
2. 
Transversal section, showing the point where the central 
dise and the cornu wmeet at x. 
Fig. 
Maguif. 
Fig. 
Fig. 
magnif. 
Fig. 
3. 
607. 
4. 
5. 
60/7 
6. 
Transversal section, showing the same point as in fig. 2. 
Longitudinal section parallel to a ridge. Magnif. 8094. 
Horizontal section through a ridge, both ledges crenated, 
Portion of the preceediug section, magnified. 300/.. 
