RECENT LITERATURE 
63 
Smith, G. Elliot. An example of Tarsius from Sarawak. Proc. Zool. Soc 
London, 1921, pp. 184-186, 1 pi. March, 1921. 
SoNNTAG, Charles F. The comparative anatomy of the tongues of the Mam- 
malia. II. Family 1, Simiidsc. Proc. Zool. Soc. London, 1921, pp. 1-29. 
March, 1921. 
A contribution to the anatomy of the three-toed sloth {Bradypus tri- 
dactylus). Proc. Zool. Soc. London, 1921, pp. 157-177, 4 pis. March, 1921. 
Strong, R. M. The causes of whiteness in hair and feathers. Science, n.s., 
vol. 54, p. 356. October 14, 1921. 
Thomas, Oldfield. New Cryptotis, Thomasomys, and Oryzomys from Colombia. 
xAnn. and Mag. Nat. Hist., ser. 9, vol. 8, pp. 354-357. September, 1921. 
New Pseudochirus and Phascogale from N. W. New Guinea. Ann. and 
Mag. Nat. Hist., ser. 9, vol. 8, pp. 357-359. September, 1921. 
Notes on Australasian rats, with a selection of lectotypes of Australasian 
Muridae. Ann. and Mag. Nat. Plist., ser. 9, vol. 8, pp. 425-433. October, 
1921. (New forms of Rattus, Hydromys, and Conilurus.) 
— The jerboa of Muscat. Ann. and Mag. Nat. Hist., ser. 9, vol. 8, pp. 
440-441. October, 1921. (Describes Jaculus loftusi vocator from coast 
region near Muscat.) 
A new short-tailed opossum from Brazil. Ann. and Mag. Nat. Hist., 
ser. 9, vol. 8, pp. 441-442. October, 1921. (Describes Monodelphis theresa 
from Organ Mountains, Brazil.) 
A new cotton-tail (Sylvilagus) from Colombia. Ann. and Mag. Nat. 
Hist., ser. 9, vol. 8, pp. 442-443. October, 1921. {Sylvilagus nicefori, sp. 
nov.) 
Notes on the species .of Notomys, the Australian jerboa-rats. Ann. 
and Mag. Nat. Hist., ser. 9, vol. 8, pp. 536-541. November, 1921. (New: 
Notomys sturti, New South Wales; N. macrotis, West Australia; N. mitchelli 
macropus, South Australia; and N. aquilo, Queensland.) 
— ^A new hedgehog from the Island of Djerba, Tunis. Ann. and Mag. 
Nat. Hist., ser. 9, vol. 8, p. 570. November, 1921. (Describes Paraechinus 
deserti blancalis.) 
Warren, Edward Royal. The small mammals of Colorado. Colorado Moun- 
tain Club, pub. no. 7, 31 pages, 21 figs. June, 1921. (A popular account of 
many of the smaller species found in the state.) 
WiNTEMBERG, W. J. Archaeological evidence concerning the presence of the 
gray fox (Urocyon sp.) in Ontario. Canadian Field-Nat., vol. 35, pp. 19-20. 
January (June 8), 1921. 
