MAMMALS OF MINNESOTA. 245 



North American species are, as might be expected, more like 

 the European types than those of South America. 



As we have but a single species in North America, instead 

 of a more extended discussion of the group it must suffice to 

 give a list of the described species and the above figure of 

 one of the most remarkable of the foreign types. 



SUBFAMILY SYNETHERIN^E 



Clavicles perfect; molars rooted; toes 4-4 or 5-4; tail generally prehen- 

 sile; habit, arboreal. Western Hemisphere. 



Genus Chcetomys GRAY. Containing a single species of rather slender 

 form, with a rat-like scaly tail. The malar bone is very broad, with a spur 

 above. C. subspinosus Gray, S. A. 



Genus Synetheres F. CUVIER. The body is rather slender, clothed with 

 straight spines. The tail is scaly at the end only. The temporal region is 

 very broad and high. The body is covered with spines except beneath, 

 where they are replaced by bristles. The skull is greatly elevated between 



the eyes. 



1. S. prehensilis BRANDT, S. A. 

 . . platycentrotus BRANDT, S. A. 

 ? 3. S. magna LUND. \ Fossils from Caverns of 



? 4. S. duMa LUND. 



? 5. S. fossilis LUND. > Minas Geraes. 



Genus Sphingurus F. CUVIER. Much as above but hairy below and 

 without the great elevation between the eyes. 



1. S. villosus WATERHOUSE, S. A. 



2. S. pallidus WATERHOUSE, S. A. 



3. S. melanurus WATTERER, S. A. 



4. S. bicolor TSCHUDI, S. A. 



5. 8. iwoce-hispanice WATERHOUSE, Mexico. 

 Genus Ereihizon F. CUVIER. (See beyond). 



1. E. dorsatus CUVIER, N. A. 



2. E. dorsatus var. epixanthus BRANDT. 



SUBFAMILY HYSTRICIN^B. 



Clavicles imperfect; toes, 5-5; molars but partly rooted; tail, short; 

 habit, terrestrial or fossorial. Eastern Hemisphere. 



Genus Hystrix LINN. Body short; head thick with blunt muzzle; 

 covered with very long erectile spines; tail inconspicuous. 



1. H. cristata L., Europe and N. Africa. 



2. H. hirsutirostris BRANDT, Syria, etc. 



3. H. africce-australis PETERS, S. Africa. 



4. H. javanica CUVIER, Java, etc. 



5. H. fwdgsoni GRAY. 



Genus Atherura M. G. CUVIER. Much as in Hystrix, but with long ap- 

 pendaged tail and but four toes in front. 



1. A.fasciculata SHAW, Siam. 



2. A. macroura WATERHOUSE, Sumatra. 



3. A. africana GRAY, Sierra Leona. 



A number of fossil forms of more or less uncertain position might be 

 here included. 



