MAMMALIA. 681 



Spalacopus WAGL., Poephagomys F. Cuv., Psammoryctes POEP- 



4 4 

 PIG, WAGN. Incisor teeth smooth; molars J^JT, destitute of 



roots, simple, narrowed in the middle on each side, hence bipartite. 

 Ears small. Tail short. Claws compressed, incurved. 



Spalacopus noctivagus, Psammoryctes noctivagus POEPP., Poephagomys 

 ater F. Cuv. Ann. des Sc. not. 2e Se'rie, Zool. i. 1835, p. 321, PI. 13, 

 WATEBH. Mamm. n. PL 9, fig. i, GUEE. Magas. de Zool. 1836, Mamm. 

 PL 20. 



Schizodon WATERH. (Scarcely different, except in the ears a 

 little larger.) 



Sp. Schizodon fuscus WATEBH. Mamm. n. PL u, fig. 2 ; a species which, like 

 theGeorychi of the Cape, burrows under ground ; it is found in the southern 

 part of the Andes-range. 



Georychus ILLIG. (in part), mihi, WlEGM., Eaihyergus F. Cuv. 



4 4 

 (spec, of Bathyergus G. Cuv.). Incisors short, molars simple j 



3 3 



or often ^ ~ , with the last developed late, the first least of all. 

 o o 



Eyes small. Ears none. Claws of fore feet small. Tail short. 



Sp. Georychus capensis ILLIG., Mus capensis PALL. Glir. Tab. 7 (fig. copied 

 in SCHBEB. Saufftk. Tab. 204), BUFF. Suppl. in. PL 33, p. 194, vi. PL 

 36, p. 252, la petite taupe du Cap. This animal, of the size of a rat, is 

 greyish, with head black and often white on the nose, near the auditory 

 passages, above the eyes and on the middle of the occiput. This burrowing 

 mouse lives at the Cape of Good Hope, in the gardens of Cape Town and 

 in the fields further in the interior. (" F. CUVIEB and ILLIGEB ascribe to 

 this animal 3 molars ; in one skull, however, I counted 4. The first, the 

 largest in Bathyergus, is here the smallest." Handb. der Dierk. first edit. 

 II. p. 611). The eyes are very small in Georychus holosericeus WAGN., 

 according to PETERS it does not differ from Bathyergus ccecutiens LICH- 

 TENST., BBANTS Muizen bl. 37. 



Heliophobius PETERS. (A genus scarcely distinct from Georychus 



(\ f\ 

 except in the molar teeth ^ ?) 



Sp. Heliophobius argenteo-cinereus, PETEBS Reise nach Moss., Saugth. pp. 

 J 39 H5, Tab. 31, fig. 2. 



Note. Whether this be the place for Elldbius FISCHER, Chtono- 

 ergus NORDMASTN, I scarcely venture to determine. 



