MAMMALIA. 681 



Spalacopus Wagl., Poephagomys F. Cuv., Psammoryctes Poep- 



' 4 — 4 



PIG, Wagn. Incisor teeth smooth; molars j^^, destitute of 



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

 Ears small. Tail short. Claws compressed, incui-ved. 



Spalacopus noctimrjus, Psammoryctes noctivagus Poepp., Poephagomys 



ater F. Cuv. Ann. des Sc. nat. 2e S^rie, Zool. i. 1835, p. 321, PI. 13, 



Waterh. Mamm. 11. PI. 9, fig. i, Gubk. Magas. de Zool. 1836, Mamm. 



PI. 20. 



Schizodon Waterh. (Scarcely diflferent, except in the ears a 



little larger.) 



Sp. Schizodon fusc^is^ KT^V^B.. Mamm. il. PI. ri, fig. 2 ; a species which, like 

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

 part of the Andes-range. 



Georychus Illig. (in part), mihi, WiEGM., Bathyergus F. Cuv. 



4 — 4 

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



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

 6 — 6 



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



Sp. Georychus capensis Illig., Mus capensis Pall. Glir. Tab. 7 (fig. copied 

 in ScHKEB. Sdugth. Tab. 204), Buff. Suppl. in. PI. 33, P- 1 94. vi. PI. 

 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. Cuvier and Illiger ascribe to 

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

 largest in Bathyergus, is here the smallest." Ilandb. 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., Brants Muizen bl. 37. 



Heliophohlus Peters. (A genus scarcely distinct from Georychus 

 c c 

 except in the molar teeth -^ — ^ 1) 



Sp. HeUophoUus argenteo-cinereus, Peters Reise nach Moss., Sdugth. pp. 

 139—145, Tab. 31, fig. 2. 



N'ote.— Whether this be the place for Ellohius Fischer, Chtono- 

 ergus Nordmann, I scarcely venture to determine. 



