NESOKIA. 53 



Genus ISOMYS. 



Isomys, Sundeval Kongl, Vetens. Akad. Handl, (1842)*. 



Isomys variegatus. 



Mus variegatus, Is. Geoff. St. Hil. De scrip, Egypt Nat. Hist. (1813)* 



Schinz Synop. Mamtn., ii, p. 157. 

 Isomys variegatus, Sundeval Kongl. Vetens. Akad. Handl. (1842)*. 



Distribution. — North-East Africa. 



o. Ale. ^ Cairo, Egypt Purchased, 



Genus NESOKIA. 



Nesokia, Gray Ann. Mag. N. H., x, p. 265 {1842) ; ■ Type, N. hardwickii, 

 Spalacomys, Peters Abhand. Akad. Berlin, p. 139 (i860). Type, N. hard- 

 wickii. 



The genus was first put into its present form by Anderson 

 (J. A. S. B., xlvii, p. 214), the number of species, however, re- 

 cognised by Anderson were subsequently considerably reduced 

 by Thomas (P. Z. S., 1881, p. 521), and it is the latter author 

 who has been followed in compiling this catalogue. 



Synopsis of Indian species. 



a. Anterior palatine foramen shorter than the molar series ; 

 mammae, 8; tail, about equal to body without head; head 

 and body, 6 to 7 inches long. N. hardwickii, p. 53. 



a^. Anterior palatine foramen equal to the molar series and con- 

 siderably narrowed posteriorly; mammas, 14-18; head and 

 body 7 to 8 inches long. . N. bengalensis, p. 55. 



a^. Anterior palatine foramen as in N. bengalensis, but rather 

 more open behind ; mammae, 12. 



b. Head and body about 12 inches; back with long harsh 

 black piles. . . . N. bandicota, p. 57. 



^. Head and body 9 to 11 inches; black piles not so numer- 

 ous or conspicuous. . . N. nemori vagus, p. 58. 



Nesokia hardwickii. 



Arvicola indica, Gray Illustr. Ind.Zool., i, pi. xi (1832) \_nec Mus indicus 



Beck.'] 

 Mus hardwickii, Gray Charlesw. Mag. N. H.^ i, p. 585 (1837) ; Blyth J. A. 



S. B., xxxiv, p. 193. 

 Nesokia hardwickii, Gray Ann. Mag. N, H., x, p. 265 (1842) ; Jerdon 



Mamm., p, 190 ; Thomas P. Z. S., 1886, p. 56; Radde Zool., J. B„ iv, p. 



103s. 



