^ RECENT LITERATURE 
249 
Murphy, Robert Cushman. The seacoast and islands of Peru. I. Brooklyn 
Mus. Quart., vol. 7, pp. 69-95, 6 figs. April, 1920. (Includes discussion of 
the relation of ocean currents to the distribution of pinnipeds and other 
marine vertebrates. Maps show range of fur-seals, sea-elephants, and 
sea-lions.) 
New York Zoological Society. Twenty-fourth annual report. 1919. Pp. 
1-204, numerous illustrations. January, 1920. (On December 31, 1919, 
the collection of living animals at the New York Zoological Park included 
591 mammals of 173 species.) 
Oberholser, Harry C. The nomenclature of families and subfamilies in zool- 
ogy. Science, n. s.. vol. 52, pp. 142-147. August 13, 1920. (Tentative 
rules for the determination and treatment of family and subfamily names.) 
Shupeldt, R. W. Tramps through the Gulf States — I. Amer. Forestry, vol. 26, 
pp. 489-496. August, 1920. (Photographs of the Texas armadillo.) 
Sumner, Francis B. The need for a more serious effort to rescue a few frag- 
ments of vanishing nature. Sci. Monthly, 1920, pp. 236-248. March. (A 
plea for permanent reservations for wild life that will preserve truly natural 
conditions.) 
Sumner, Francis B. Geographic variation and Mendelian inheritance. Journ. 
Exper. Zook, vol. 30, pp. 369-402; figs. 1-7; tab. 1-4. April, 1920. (Inter- 
esting experiments with different geographical races of California Pero- 
myscus.) 
Thomas, Oldfield. New species of Reithrodon, Ahrocoma, and Scapteromys 
from Argentina. Ann. and Mag. Nat. Hist., ser. 9., vol. 5, pp. 473-478. 
June, 1920. 
Thomas, Oldfield. Notoryctes in North-west Australia. Ann. and Mag. Nat. 
Hist., ser. 9, vol. 6, pp. 111-113. July, 1920. (Describes a new species, 
N. caurinus.) 
Thomas, Oldfield. A new genus of Echimyinse. Ann. and Mag. Nat. Hist., 
ser. 9, vol. 6, pp. 113-115. July, 1920. (Lonchothrix emilice gen. et spec, 
nov., from Rio Tapajoz, Brazil.) 
Thomas, Oldfield. On mammals from near Tinogasta, Catamarca, collected 
by Sr. Budin. Ann. and Mag. Nat. Hist., ser. 9, vol. 6, pp. 116-120. July, 
1920. (New: Octomys, type 0. mimax sp. nov.; and Ctenomys coludo; both 
from Argentina.) 
Thomas, Oldfield. A new tuco-tuco from Tucuman. Ann. and Mag. Nat. 
Hist., ser. 9, vol. 6, pp. 243-244. August, 1920. (Describes Ctenomys 
occultus from Tucuman Province, Argentina.) 
Willoughby, Charles H. Beavers and the Adirondacks. Conservationist, 
vol. 3, pp. 67-70. May, 1920, (Beavers introduced from Yellowstone Park 
and other localities have restocked this region, where it is now estimated 
there are between 15,000 and 20,000 animals.) 
