Oct. 1899. MAMMALS FROM OKLA. AND IND. TERRS. ELLIOT. 293 



ing, or to have migrated to some other region, for but few were 

 taken, even in localities in which they were common last sum- 

 mer. In my opinion, however, they were hibernating during 

 the severe weather of January and February, for the few speci- 

 mens secured were taken on nights when the temperature had 

 become milder. They live in burrows very much resembling 

 those of the Pocket Mice, but somewhat smaller." (T. S.) 



Peromyscus attwateri. 



Peromyscus attwateri, Allen. Bull. Am. Mus., N. Y., vii. 

 1895, p. 330. 



Twenty-one specimens from Dougherty, Indian Territory. 



"This interesting long-tailed Peromyscus was apparently com- 

 mon everywhere, but especially among the loose rock on the 

 ridges east of Dougherty. Nothing much could be learned of 

 their habits, but they are apparently much the same as the other 

 woodland species of the genus." (T. S.) 



Peromyscus canus. 



Peromyscus canus. Mearn's Proc. U. S. Nat. Mus. Wash. 

 1895, p. 445. 



Fifty-two specimens. 16 Alva, 20 Noble, 16 White Horse 

 Springs, Oklahoma Territory. 



The specimens from Alva are typical canus, with the long tail 

 66-78 mm. in length. Those from Noble have much shorter 

 tails, 50-69 mm., none equaling the length given for the type 

 75 mm. But the general colors of the pelage are practically 

 alike, and the skulls do not seem to differ, nor do the young. I 

 have therefore considered them as the same. The difference, 

 however, in the length of the tails is very conspicuous. "The 

 white-footed mice of White Horse Spring represent either two 

 forms, or the young and adults inhabit a different character of 

 country, never associating together. Invariably I found the 

 small one on the level prairies, while his big relative was always 

 found among the rocks on the high buttes. So far as color is 

 concerned it would be hard to distinguish them apart, but it 

 seems strange that their habitat should be so different. Even 

 low down on White Horse Creek I took two or three specimens 

 among the gypsum cliffs, but no small ones were to be had 

 nearer than the level prairie. Both may prove to be of the same 

 species, but I shall always have my doubts owing to well marked 

 difference in their habits." (T. S.) 



