E. Tafel XI. 
Fig. 1. Didelphys. 
ONGISS. GErV. 
Longiss.cap Oper 
\ Proc. transv. cerv._EH 
vr 
öcalen. 
Yors. Cg 
| Ya 
Fig. 2. Didelphys. 
\; 
Long155. Cap. Semisp. cap. 
Drgiss. cerv 
OSIaT. 
Fig. 3. Didelphys. 
ß 
tertransv. dors. cerv.long. 
Jntertransv lat Rect cap lat 
oc Iransv. cerv OT. 
