435 



convex walls, but in its great transverse and vertical diameters, and its allocation at the back 

 part of the skull. The zygomatic arch is complete : the base of the zygomatic process is 



deeply excavated anteriorly. 



Hunterian. 



Genus Talpa. 



2402. The skeleton of the common Mole (Talpa europted). 



The vertebral formula is : 7 cervical, 13 dorsal, 6 lumbar, 5 sacral, and 10 caudal. 



Presented by Henry Cline, Esq. 



2403. The skeleton of the common Mole (Talpa europced). 



The vertebral formula is : 7 cervical, 13 dorsal, 6 lumbar, 5 sacral : some of the caudak 

 are wanting. 



Presented by Thomas Butt, Esq. 



2404. The skeleton of the common Mole (Talpa europad). 



The vertebral formula is : 7 cervical, 13 dorsal, 6 lumbar, 5 sacral : the caudal vertebrae 

 are wanting. 



Mus. South. 



2405. The skull of the common Mole (Talpa europtsd). Hunterian. 



2406. The mutilated skull of the common Mole, with the left ramus of the lower 

 jaw, and the teeth of the left side of the upper and right side of the lower 

 jaw, exposed. The upper canines have each two fangs. Hunterian. 



The following are parts of the same skeleton of the Common Mole (Talpa europcea) : 



Hunterian. 



2407. The cranium, longitudinally bisected. 



It shows the remarkable extension of the superoccipital upon the upper surface of the 

 cranium, the expanded mastoids, and the very slender zygomata hi which no distinct malar 

 bones can be discerned. The petrosal is largely and deeply excavated by the cerebellar 

 fossa. The rhinencephalic fossa is large and well defined. The basioccipital and basisphenoid 

 are thick and of a fine spongy texture. 



2408. The dentata and other cervical vertebrae. 



The odontoid process has a sharp hypapophysis : the spine of the dentata is large and 

 extended back over the third vertebra : the neural arches of this and the succeeding vertebrae 

 form thin simple arches, without spines ; the transverse processes of the fourth, fifth and 



3K2 



