122 
JOUENAL OF MAMMALOGY 
Kerr’s Cervus cuguapara, is applied to specimens from Manaos, The new 
name Mazama simpUcicornis var. kosertzi occurs on three plates showing a 
skull from Rio Grande do Sul. A colored plate shows the type specimen of 
Natterer’s Nanelaphus nambi from the original in the Vienna museum.) 
Osborn, Henry Fairfield. The evolution, phylogeny and classification of the 
Proboscidea. Amer. Mus. Novit., no. 1, pp. 1-15, 4 figs. January 31, 1921. 
Petronievics, Branislav. On the law of irreversible evolution. Ann. Rep. 
Smithsonian Inst., 1918, pp. 429-440. 1920. (Translated by Gerrit S. Miller, 
Jr.) 
Ravenel, William de C. Report on the progress and condition of the United 
States National Museum for the year ending June 30, 1920. 1920. (Includes 
reports by head curators of departments. Half-tone plate of mounted skele- 
ton of Brontotherium hatcheri Osborn.) 
Royal Zoological and Acclimatisation Society of Victoria. Fifty-sixth 
annual report and report of the annual meeting of the society for the year 
1919. Melbourne, 1920. (List of animals living in the Melbourne zoological 
park. Five half-tone plates of mammals and a plan of the gardens.) 
Shufeldt, R. W. American bears. Amer. Forestry, vol. 27, pp. 22-31, figs. 1-12. 
January, 1921. 
Types of mammals. With notes on hybrids, diseases, albinism, and 
other conditions equally applicable to man. Med. Record, reprints paged 
1-23, 5 figs. January 29, 1921. 
Skinner, M. P. Story of the Whitebar elk. Nat. Hist., vol. 20, pp. 576-583. 
December, 1920. 
Takenouchi, Matsuziro. Studies on the reputed endocrine function of the 
thymus gland (albino rat). Journ. Exper. Zook, vol. 29, pp. 311-342. Octo- 
ber, 1919. 
Thomas, Oldfield. A new tuco-tuco from Bolivia. Ann. and Mag. Nat. Hist., 
ser. 9, vol. 7, pp. 136, 137. January, 1921. {Ctenomys goodfellowi, sp. nov., 
from Esperanza, Nuflo de Chaves, Bolivia.) 
Two new Muridsc discovered in Paraguay by the Marquis de Wavrin. 
Ann. and Mag. Nat. Hist., ser. 9, vol. 7, pp. 177-179. February, 1921. (Ory~ 
zomys wavrini and Akodon toha, new species from the Northern Chaco.) 
A new mountain vizcacha (Lagidium) from N. W. Patagonia. Ann. 
and Mag. Nat. Hist., ser. 9, vol. 7, pp. 179-181. February, 1921. (Describes 
Lagidium boxi from the upper Rio Negro, Patagonia.) 
A new monkey and a new squirrel from the Middle Mekong, on the 
eastern frontier of Siam. Ann. and Mag. Nat. Hist., ser. 9, vol. 7, pp. 181- 
183. February, 1921. {Pithecus laotum and Dremomys rufigenis laomache 
are described as new.) 
New Rhipidomys, Akodon, Ctenomys, and Marmosa from the Sierra 
Santa Barbara, S. E. Jujuy. Ann. and Mag. Nat. Hist., ser. 9, vol. 7, pp. 
183-187. February, 1921. {Rhipidomys austrinus, Akodon sylvanus, Cteno- 
mys budini barbarus, and Marmosa elegans sponsoria are new forms from 
Argentina.) 
Thomas, Oldfield, and Herbert C. Robinson. Some new insular squirrels 
of the Callosciurus caniceps-concolor group from peninsular Siam. Ann. and 
Mag. Nat. Hist., ser. 9, vol. 7. pp. 118-123. January, 1921. (Nine new forms 
of Callosciurus.) 
