MURID.E. BATHYERGUS. 221 



SIPHENUS. 



Teeth :— Incisors £j ; Molars -j=| ; = 16. 



The Zoker. Siphenus aspalax. 



Mus aspalax, Pallas, Nov. Spec. Glires, p. 76. tab. 27. fig. ix. 16 

 Cfore-foot), 1778.— Schreb., Saugth. pi. 239 E (dentition). 



a-c. *Skulls. Altai Mountains. From Mr. Brandt's Collection. 

 SPALAX. 



Teeth :— Incisors \± ; Molars ^ ; = 16. 



The Slepez. Spalax typhlus. 



Blasius, Faun. Wirb. Deutscbl. p. 399. fig. 223 (skull), 1857.— J! Ciw., 

 Dents des Mamm. p. 176. no. 66 (dentition), 1825. — Pallas, Nov. 

 Spec. Glires, p. 163. pi. 26. fig. xvii. 14 (skeleton), fig. xvii. 15 

 (skull), 1778.— Schreb., Saugth. pi. 239e. fig. (dentition).— Fischer, 

 Prodi'. Cran. Comp. tab. 2. fig. 6 (skull), 1811. — Waterhouse, 

 Charlesworth's Mag. Nat. Hist. 1839, p. 596. fig. 72.— Brandt, 

 Mem. Acad. St. PtSterab. vii. pi. 4. fig. (skull). 



Cervical vertebrae 7 



Dorsal 14 



Lumbar 6 



Sacral 4 



Caudal 7 



a. Skeleton. Europe. From Mr. Brandt's Collection. 



BATHYERGUS. 



Teeth: — Incisors^; Molars — 4 ;=20. 



I-l 4-4 



The Coast Rat or Sand Mole. Bathyergus maritimus. 



Pander und D' Alton, Vergl. Osteol. no. 6. pi. 11 (skeleton). — Cut., Oss. 

 Foss. v. pi. 1. fig. 16 (teeth).— Owen, Odont. pi. 105. fig. 11 (teeth), 

 1840-45.— F. Guv., Dents des Mamm. p. 174. no. 64 (dentition), 

 1825.— Schreb., Saugth. pi. 239 e. fig. (dentition). 



Orycterus maritimus, Waterhouse, Ann. & Mag. Nat. Hist. viii. p. 84. 

 pi. 11. fig. 1 (skull), 1842. 



Cervical vertebras 7 



Dorsal 14 



Lumbar 6 



Sacral 4 



Caudal 14 



a, b. Skxills. S. Africa. 



c. Skull (upper jaw). S. Africa. 



