458 



Mr. H. L. Jiuneson on 



(15) Tdtera miliaria saha Wrought. 



Tzaneen, Zoutpansberg District, Transvaal. 



Series. 



These examples are from a locality situated between the 

 two stations from which Wroughton records his species. 



This form is very near to Tatera loheiigulce inashonte ; 

 indeed, my examples were first identified by Mr. Wroughton 

 himself as that form. 



The chief diflference between these two forms seems to be 

 the dimensions of the head and body and tail, and more 

 particularly the size of the skull. My examples agree in 

 these points more nearly with saha than with mashonce, as 

 may be seen from the following dimensions : — 



I 



Head 



and 



bodv. 



*Tafera lobengulfe mas?to7i(e Wr. 146"6 



* miliaria saha ^^'r 12o-3 



Wr. (average of 



niue adult examples in my [> 132'4 

 collection) 



Tail. 



Hind 



foot. 



Ear. 



Skull. 



Greatest 

 lenofth. 



162-3 

 146 



143-3 



32-6 

 29-6 



31-4 



22-6 

 19-6 



24 



39-6 

 37-6 



37-5 



Basilar 

 lenffth. 



30-6 



28-6 



28 



This species is common everywhere about Tzaneen. In 

 one area of low-lying sandy ground, about an acre in extent, 

 there was a colony or warren which must have contained 

 some dozens of burrows, most of which were occupied by 



this gerbille. 



(16) Oloniys irroratus (Brants). 



Malvern, Natal. 

 $. 411. 



* Average of three specimens the dimensions of which are quoted in 

 Wroughton's description (Ann. & Mag. Nat. Hist. (7) xvii. 1906, 

 pp. 484, J85). 



I 



