396 



Subfamily GERBILLINJE. 



Molars rooted, tubercular at first ; when they are worn, the 

 enamel forms transverse oval or lozenge-shaped patterns that after 

 a time coalesce in the middle of the tooth. Auditory bullae large. 

 Hind limbs elongate ; tail hairy. 



This subfamily is found in Asia and Africa. A single genus is 

 Indian. 



Genus GERBILLUS, Desinarest (1804). 

 Syn. Meriones, Illiger (1811). 



Tail long, hairy, with a terminal pencil 

 of long hair. Head slightly elongate, ears 

 moderate. Mammae 4 pairs : 2 pectoral, 2 

 inguinal. Large metacarpal pads. 



Dentition : i. |, m. ^|. Upper incisors 

 grooved longitudinally, anterior molar in 

 both jaws composed of three transverse 

 elliptical or lozenge-shaped areas, the second 

 of two, and the third of one ; the posterior 

 Fig. 127.- -(.) Upper upper molars with a more or less rudiment- 

 and (b) lower right ary second ridge or heel, soon disappearing 

 molars of G. indicu*, w j tn wear> Occipital region of the skull 

 broad. 



Synopsis of Indian and Ceylonese Species. 



A. Size of a rat. Snout to vent exceeding 4 in. 



a. Planta entirely naked G. indicts, p. 396. 



b. Distal half of planta hairy ; ear 0-25 in G. hurriance, p. 398. 



c. Whole planta hairy ; ear O45 in G. erythrura, p. 399. 



B. Size of a mouse. Snout to vent less than 3'5 in. 



a. Planta with 6 pads, proximal half naked . . G. nanus, p. 399. 

 6. Planta without distinct pads, hairy through- 

 out G. gleadowi, p. 400. 



264. Gerbillus indicus. The Indian Gerbille or Antelope Mat. 

 Dipus indicus, Hardwicke, Linn. Trans, viii, p. 279, pi. vii (1807). 

 Gerbillus indicus, F. Cuv. Tr.Z. S. ii, p. 143, pi. xxv, figs. 15-19; 

 Blyth, J. A. 8. B. xxxii, p. 327 ; id. Cat. p. 110; Jerdon, Mam. 

 p. 184 ; Blanford, Eastern Persia, p. 63. ' 

 Mus (Gerbillus) indicus, Elliot, Mad. Joum. L. S. x, p. 211. 

 Gerbillus cuvieri and G. indicus, Waterhouse, P. Z. ti. 1838, p. 56. 

 Gerbillus cuvieri, Hutton, J. A. S. B. xv, p. 139. 



Harna mus (antelope rat), H.; Jhenkuindur, Beng.; Pdndlmrd undir, 

 Mahr.; Yeri yelka, Wadari ; Tel yelka, Yenadi ; Billa ilei, Canarese. 



Tail longer than head and body. Ears moderate, rounded, 

 thinly clad. Mania naked, distal portion granular. Two pads at 



