On some small Mammals from Cutamarca, 115 
X.—On some small Mammals from Catamarea, 
By OLDFIELD ‘THOMAS. 
(Published by permission of the Trustees of the British Museum.) 
THE British Museum has received a small collection of 
admirably prepared skins of mammals, mostly rodents, 
obtained at Chumbicha, Catamarca, by Sr. E. Budin, and a 
list of these seems desirable. 
Chumbicha is about 60 kilometres due south-west of the 
town of Catamarca, and lies at an altitude of about 600 metres. 
The collection consists of eighty-nine specimens, belonging 
to nine species, of which one has already been, and two are 
now, described as new. 
1. Eligmodontia marica, Thos. 
Ann. & Mag, Nat. Hist, (9) ii. p. 483 (1918). 
ou299; 311; 2. 296, 312.. astern; desert, sidey of 
Chumbicha. 
Notes about this beautiful little species have already been 
published (/. ¢.). Itstypeisno.311. B.M. no. 18.11.11. 1. 
It is readily distinguishable by its small size and snowy- 
white belly. 
The four specimens were all caught in one place in the 
desert area to the east of Chumbicha, and none were seen 
elsewhere. 
2. Hesperomys murillus cordovensis, Thos. 
Qeaeak ol, 292-. 298. 300; 302,306,507, 3135 9. 297, 
301,303, 304, 305, 308, 309, 310. 
“ Caught among the wild cactus-plants.—Z. B.” 
The type-locality of cordovensis is Yacanto, near Villa 
~ Dolores, Cordova, some 250 kilometres south-east of Chum- 
Licha. 
3. Graomys sp. 
dg. 226, 232, 233, 236, 237, 245, 254, 260, 262, 263, 274, 
275, 278, 281, 285, 288, 291, 293, 294, 314; 9. 223, 244, 
250, 261, 264, 279, 282, 284, 295, 315. 
This fine series will be of much service when time and 
material are available for a thorough study of this difficult 
genus. Among these specimens there are examples with the 
belly-hairs white to the roots, and others with slaty-based 
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