A^o. 2.] TROUESSART ON REVISION OF THE GENUS SCIURUS. 305 



dorsal stripes. Of medium and small size. — Subgenus Funambulus, 

 Less., 1830. 

 Of Asia and Malasia: 



1. herdmorii, Blyth. G. tristriaius, Waterb. 



2. quiriqueslriatus, Anders. 7. siihlineatus, Watcrli. 



3. vittatus, Raffles. 8. laijardi, Blytli. 



4. plantani, Ljung. 9. maclellandi, Horsf. 



5. palmarum, L. (type). 10. insignis, F. Ciiv. 



F. Head lengthened, laterally compressed, muzzle narrow and elon- 

 gate; nose acute; tail as long as the body, distichous and bushy. 

 Lower incisors very long ; molars f . Of medium size. Asia and 

 Malasia. — Subgenus Ehinosoiurus, Gray, 1843. 



1. davidianus, A. Milne-Edw. 2. laticaudatus, Mfill. & Sclileg. (lyj;e). 



Cr. Head short, broad posteriorly, the muzzle compressed, the inter- 

 orbital region contracted*? {chanjrein busqu^); tail longer than body 

 and head, bushy and distichous. Molars f . — Subgenus Sciurus (re- 

 stricted). 



Only one species, widely distributed over all the northern part of the 

 Europjieo- Asiatic continent ; from England to Japan, from Sweden and 

 Eussia to Spain and Greece, from Siberia to Asia Minor and Persia, 

 in eastern Asia extending to the northern slope of the Himalaya 

 plateau, and in northern China to the environs of Pekin. 



1, vulgaris, L. 



II. — American Squirrels. 



H. Head rather long, little widened posteriorly, a cliavfrein busque; 

 tail as long as the body, bushy and well haired, rarely distichous.* 

 Molars f. Of medium or large size. — Subgenus Neosciurus, Trt., 1 880. 



Of Xorth America to Panama : 



1. caroUnensis, Gm. 4. aberti, Woodh. 



2. arizonensis, Coues. 5. fossor, Peale (uec auct).t 



3. griseojlavus, Gray. 



I. Head lengthened, contracted! as in the preceding subgenus; tail 

 broad and bushy, longer than the body. Molars |. Size large.— Sub- 

 genus Parasciurus, Trt., 1880. 



One Korth American species : 



1. niger, L. 



J. Head lengthened, contracted? only behind the interorbital region 

 which presents an interocular depression, compressed in the nasal re- 

 gion ; tail generally rounded, cyliudric, as long as the body. Molars f- 

 in the young, but often | in the adult, the rudimentary premolar being 

 more or less speedily shed. Of medium or smaU size.— Subgenus Ma- 

 CROXUS, G. Cuv., 1825. 



[*The tails of species here enumerated appi.ir to be fairly disticboiis.— C] 

 [t Is there any misunderstanding among authors respecting this well-marked spe- 

 cies?— C] 



