MURIDZ.—NEOTOMA. 175 
DIPODOMYS. 
Teeth :—Incisors +; Molars #4 ;=20. 
1- 
The Povucuzp Jerzoa Movsr. Dipodomys phillipsii. 
Macrocolus altaicus, Wagner, Phys. Abhandl. der K. B. Akad. zu 
Miinchen, v. pl. 7 (skeleton and skull), 1848. 
Cervical vertebre.............. 4: 
DOr: ceric, cuss o obs oigoe swt 12 
LOMBEP aes need cge teens v6 
DACTAL 2 a vince enioaedas Sareea a 4 
OF; 10 (0 2) ae a 18 
a. Skeleton. California. Presented by J. H. Gurney, Esq., M.P. 
The Kangaroo Rat. Dipodomys ordii. 
Baird, Mamm. N. America, p. 410. pl. 51. fig. 1, pl. 83. figs. 8, 4 
(skull), 1859. 
MERIONES. 
Teeth :—Incisors ; Molars #4 33 = 18. 
a 
The Karsz. Meriones labradorius. 
F. Cuv., Dents des Mamm. p. 187. no. 75 (dentition), 1825. 
a. Skull. North America. 
b,c. Skulls. Albany. Presented by G. Barnston, Esq. 
Meriones rufirostris. 
*qa, Skull. Kordofan. 
Meriones limbatus. 
*a, *b. Skulls. Kordofan. 
Meriones leucogaster. 
Peters, Naturw. Reise nach Mossambique, Saugth. p. 145. taf. 33. 
fig. 1, taf. 35. fig. 4. 
Gerbillus brevicaudatus, Waterhouse, Mag. Nat. Hist. 1839, p. 18. 
fig. ¢ (skull). 
Mertanes caffer, Licht, in Schreb., Siugth. iv. pl. 239 v. fig. 13 (den- 
tition). 
NEOTOMA. 
Teeth :—Incisors — ; Molars = ;=16. 
