MURIDA,—GERBILLUS. 205 
The Grrzoa. Dipus egyptius. 
a oo Mém. de la Soc. d’Hist. Nat. de Strasbourg, ii. pl. 3. 
ne 1-5 (skeleton and skulls).— Waterhouse, Charlesworth’s Mag. 
t. Hist. 1889, p. 9. fies. c, d (skull). 
Dipodes jerboz, Fischer, Prod. Cran. Comp. tab. 2. fig. 1 (skull), 1811. 
Dipus bipes, Pander uw. 1D’ Alton, Vergl. Osteol. taf. 5 (skeleton). 
a. Skull. Egypt. 
b. Skull. From the Zoological Society’s Collection. 
Dipus telum. 
*q, Skull. Wolga. From Mr. Brandt’s Collection. 
Dipus sagitta. 
Schreb., Saugth. iv. p. 849.— Owen, Odont. ig 105. ss (dentition). 
Mus sagitte, Pallas, Nov. Spec. Glir. p. 311. pl. 26. xxv. 5 (ske- 
leton), 1778. 
ALACTAGA. 
Teeth :—Incisors ++ ; Molars = ;=16. 
The Atactaca. Alactaga vexillaris. 
Dipus jaculus, Brandt, Mém. Acad. St. Pétersb. vii. taf. 11. figs. 1-7 
(skull). 
a, b. Skulls. Siberia. 
The Acontium. Alactaga acontium. 
Dorsal) casediaceiwag oa Gow hols wee 12 
Lumbar sc Seva viaiae Roe acs 7 
Sactal acini ba ceanne sega aa 4 
Catidal: ace kaise tes Sa ans 25 or 26 
a. Skeleton. Siberia. 
GERBILLUS. 
Teeth :—Incisors 3 Molars 22 : & ;=16. 
The Mounrarn Gerpitte. Gerbillus montanus. 
Skull. Caffraria, 8. Africa. 
Skull. §. Africa. Presented by Sir A. Smith. 
os 
The Suenptr Gersitte. Gerbillus tenuis. 
a. Skull. §. Africa. Presénted by Sir A. Smith. 
