( 301 ) 



This dormouse, curiously (.Minugh, has more resemblance to the E. Icrotiinis 

 tunctae Thos., of Tunis, than to the tyiiical E. Icrotintis from the intermediate 

 locality of Mzab, Saharan Algeria, for it has an even more completely black tail 

 than the former; but its body-colonr is more as in the pale Saharan form. 



The '^ Bifa lerotimi " recorded by Martinez is no doubt the present animal. 



4. Gerbillus I'iggenbachi spec. uov. 



5 SS, July 12th to August 1st, I0U2. 



1 ?, July 15th, 1902. 



A representative of G. pi/ramiihim, but smaller, and with a whiter and less 

 pencilled tail. 



General colour above as usual, light saudy bnffy, rather paler even than in 

 G. pyramidum (arabvU Thos., and nearly matching the clearest examples of 

 G. qcrhiUus. Belly snowy white, extending fairly high up on sides, where the 

 buff-ti])ped flank hairs are also white at base. Sides of muzzle, cheeks, orbital 

 rings and ear-patches, white, less sharply defined, owing to the general pallor, than 

 usual. Hands and feet white and hairy below, as usual, a small portion only of 

 the posterior soles naked. Tail a]iparently rather short for the group, but, as no 

 measurements have been taken, the exact length cannot be given. In colour it is 

 whitish buify above, lightening terminally, and pure white below ; hairs of jiencil 

 little developed, and with scarcely a trace of the usual darkening on the upperside. 



Skull distinctly of the more elongate, rat-like proportions of that of 

 G. pi/ramiditm, not as in G. ijerhillus. (Compared with the former it is, however, 

 smaller, with narrower molars (/«' 1*0 mm. broad) and decidedly smaller bullae. 



Dimensions of the type, measured in skin, and merely approximate : — 



Head and body, 101 mm. ; tail, 132 ; hindfoot, s.u., 30 ; ear, 13. 



Skull, greatest length, 31 mm. ; basilar length, 33 ; zygomatic breadth, in-2 ; 

 length of nasals, 12 ; interorbital breadth, 0-5 ; breadth of braiucase, 14 ; diastema, 

 8-5 ; length of upjier molar series, 4 ; bulla, 10'2 x 5-3. 



Type : old 7nalf; " Blouse No. 6," collected July 29th, 1902. 



The species of this group are all very nearly allied, and present few tangible 

 characters, bnt G. riygrnhuchi, while most closely allied to G. pi/ramidinn, seems to 

 be readily distinguishable by its smaller size, paler and less tufted tail, and smaller 

 bullae. 



•"). Dipodillus spec. 



S, June 17th, 1902. 



T<i() yiniiig for determination. Allied to T). dodsoni Thos. 



0. Lepus harterti spec. nov. 



?, July 29tli, 1902. Tijpc. 



Allied to L. tunetae de Wint.,* but lighter coloured throughout. 



Size and jiroportions about as in A. tamf((c, though the cars are rather shorter. 

 General colour of back very pale, sometliing between "cream-buil"' and " pinkish 

 Imfl" of Kidgway. Sides scarcely paler and without any fulvous lia,n<l along the 



• Ann. Mfiij. X. It. (7) i. |. in7. 181)^. 



