NOTES ON THE GEN US TAT ERA. 513 



Type. — B. M. No. 4. 6. 1. 3. An adult male. Collected by Mr. Sykes on 

 the 1st February 1903, and presented to the museum. 



(31) Tatera indica. 



Dispus indicus, Hardw. Linn. Trans. VIII, p. 279 (1807). 

 ll'g. "India" (Type.) 



Hardwicke describes the colour as " bright bay mixed with pencil-like 

 strokes of dark- brown longitudinally disposed, " and gives the size as : — Head 

 and body 6"5" ; tail 1" ; tuft for last 2" dark-brown. I put the normal dimen- 

 sions as follows : — 



Head and body 180 mm. ; tail 190 ; hind foot 38. 

 Skull : Greatest length 46 ; zygomatic breadth 23 ; length of upper 

 molar series 5*5. 

 The skull is much broken, but suffices to show that it is more delicately 

 made and long and narrow as compared with those of the Central Asian 

 forms : the upper molars, however, are fairly stout for their size, 



(32) Tatera cuviefi. 

 Gcrbillus cuvieri — Waterh. P. Z. S. P. 56 (1838). 

 99.12.21.2. Moli Jeri, Tinniveli (Barber). 

 5.11.25.2. Kamnad Madura (Annandale). 



These specimens I refer quite confidently to cuviei i, Waterhouse. They 

 closely agree with his description both in colour and proportions. The follow- 

 ing may therefore be taken as normal dimensions for this species : — 

 Head and body 165 ; tail 200 ; hind foot 45 ; ear 22. 

 Skull : Greatest length 44; basilar length 34 ; zygomatic breadth 23 ; 

 length of upper molar series 6 ; bullee 12. 



The extraordinary length of the hind foot, considering the size of the 

 animal, was relied on by Waterhouse to distinguish this species from indica, 

 and to this may be added the proportionally very long tail. The upper 

 molars are fairly stout, but the incisors are much narrower than in any Asian 

 form that I have seen except ceylonica. 



(33) Tatera Bailwardi, sp, n, 



5.10.4.30. Bund-i-khel, Karun river, S. W. Persia (Col. Bailward). Alt. 250'. 



5.10.4.31. Shus,near Dizful, S. W. Persia (Col. Bailward'). Alt. 500'. 



5.10.4.32. Ram Hormaz, near Awaz, S. W. Persia (Col. Bailward). Alt. 500'. 

 53.1.6.83. Mound of Susa, Khuzistan, S. W. Persia (Loftus). 



50.10.21.5. Euphrates Expedition. 



This species differs from tceniura in hardly anything but size ; in detail of 

 colouring I can detect but the very smallest differences ; the white patches on 

 the face are rather more marked in this species, forming an indistinct but 

 continuous line of pale colouring from the sides of the muzzle, over the eyes, 

 to the base of the ears. Its consistently smaller size in all details, however, 

 and the fact that the type specimen was taken at the same time and place as the 

 specimens which I have identified as tceniura, from which it is clearly distinct, 

 has determined me to give it a specific name, 



