CUMING S OCTODOtf. 



99 



Rabbit Cercomys. 



4—4 



containing the spiny rats. The molars are rooted. 



The general colour of" this species is deep brown above, 

 paler on the sides and cheeks ; all the under parts are 

 whitish ; the tail is long, like that of the rat ; ears and 

 eyes large. (Fig. 60.) It is a native of Brazil, but of 

 its habits we have no detailed accounts. The teeth of 

 the genus Echymys (a South American group) are fi- 

 gured in 61. 



Cuming's Octodon 

 ( Octodon Cumingii ; Dendrohius Degus, Meyen). 



The family Octodontidm is established for a few allied 

 genera peculiar to South America, of which that termed 



4—4 



Octodon is the type. Molars . The antorbital 



4 — 4 



foramen is as large as the orbit, or nearly so. The de- 



