( 30) 



The specimens of tliis ^'ron]) from the Algeriau Sahara are less vividly buffy 

 than those from Tripoli which I named D. dodsoni, bnt I think that they will be 

 f'onnd to grade into each other. The majority are also smaller than D. dodsoiii, 

 bnt No. 8 from Fort Miribel is as large as most Tripolitan specimens. 



[This form was first described from specimens bronght in by Arabs at Biskra 

 in 1908, where at that time Mr. W. Rofhschild, myself, and Mr. Steinbach 

 collected mammals, chiefly for the sake of fleas, for the Hon. N. ('harles Roth- 

 schild.— E. H.] 



9. Dipodillus garamantis Lat. 



c? 13 ; Chetma, near Biskra. (W. Rothschild and E. Hartert.) 

 c? 37 ; 61) km. sonth of Fort Miribel. 

 Type locality, Oiiargla. 



10. Meriones schousboei lioclie, 



S ~ ; half-way between Onargla and El-Golea. 

 c? 34 (yonng); oi) km. north of Ain Gnettara. 

 [The Arabs called it " farr" or " djerd."— E. H.] 



1 1 . Psammomys algiricus Thos. 



cj 128-29 ; Tilrlieniiit, lictween Laghonat and Gliardaia. (W. Rothschild and 

 E. Hartert, lull i. 



[Tliis species is very common near Biskra, wiu'ic tlie Arabs call it "djerd." 

 — E. H.] 



\'i. Jaculus jaculus Tv. 



(ft) ? .Tl ; plateau 4fl km. east of Ghardaia. 

 {It) 9 30 ; Oned el-Abiodh, north of In-Salah. 

 ? 40 ; s.') km. sonth of El-Golca. 

 ? 44 ; Kio km. sonth of Ghardaia. 

 The three sontheru specimens (A) differ from a, and from e-xanijilcs from 

 Biskra — with which the latter agrees — in their paler and more yellowish colour, 

 and by the presence of a distinct whitish ring roun<l the tail proximal to the broad 

 black snbterminal band. They agree, however, in both respects so closely with 

 examjjles from Cairo, the type locality of ./. jaculus, that it would not be advisable 

 to distinguish them. \Vheth(U' Loche's Dipiiii deserti from Onargla is a or b does 

 not ap[iear from his dcscri])tiou, and can mdy be settled by the examination of 

 topotypes. 



13. Massoutiera mzabi Lataste. 



S 48, ¥ 49-50; Ghardaia. 



This striking form of tiundi, discovered by Lataste in 1881, was not repre- 

 sented at all in the British Museum collection until the beginning of this year, 

 when Mr. F. R. Ratcliff presented a skin with a broken skull. The specimens 

 with perfect skulls now obtained by Dr. Hartert at the typical locality are 

 tlierefore of mnch general interest, besides having been of particular value in 

 the working out of the Oaed Mya species next following. 



They are entirely confirmatory, if confirmation be needed, of the generic 

 distinctness of Massoutiera from Ctenodacti/his, the ordinary Gundi of Algeria. 

 In colour and general external appearance the two are remarkably alike, the 



