403 



2247. The skeleton of a female (Bathyergw maritimus}. 



The vertebral formula in this skeleton is: 7 cervical, 14 dorsal, 6 lumbar, 4 sacral, and 

 1 3 caudal, but one vertebra is probably wanting from the end of the tail. 



Presented by Thomas Keate, Esq. 



2248. A somewhat mutilated skeleton of apparently a small female of the Batliyergus 

 maritimus. 



Its vertebral formula is : 7 cervical, 14 dorsal, 7 lumbar, 4 sacral : but a part only of the 

 caudal series of vertebrae remains. In this, as in the other specimens of Bathyeryus, there 

 is a vacuity in the lateral walls of the cranial cavity, between the squamosal and tympanic. 



Mus. Langstaff. 







2249. The skull of the Bathyeraus maritimus. 



Presented by Sir Everard Home, Bart., F.P.R.S. 



2250. The anterior portion of the jaws of the Bathyergus maritimus, with the dried 

 skin covering them, showing the contracted aperture of the mouth, and the 

 mode in which the large inferior incisors perforate the skin and protrude 

 below that aperture. Mus. Brit. 



2251. The skeleton of the smaller Cape Mole-Rat (Bathyergus Capemis}. 



From the state of the bones of the extremities, as well as the dentition, it is an adult. It 

 differs from the preceding species in the upper incisors not being grooved anteriorly, in the 

 proportionally longer and narrow scapulae, in the greater inclination forwards and the less 

 lateral expanse of the occipital region, and in the greater posterior expanse of the nasal bones. 

 The cranium shows the same vacuity between the squamosal and tympanic. The auditory 

 meatus is directed more upwards than forwards. 



Mus. Brookes. 



Family Helamidte (Jumping Hares). 



Genus Helamys. 

 Dental formula : j^f, p ^, m ^=20. 



2252. The skeleton of the Cape Jumping Hare (Helamys capeims). 



The vertebral formula is : 7 cervical, 12 dorsal, 7 lumbar, 3 sacral, and 29 caudal. The 

 pleurapophysial part of the seventh cervical appears to have coalesced with that of the sixth. 

 The diapophyses of the first dorsal are unusually long and strong : the anapophysis begins 



3F2 



