202 FIELD COLUMBIAN MUSEUM ZOOLOGY, VOL. i. 



macrotis, five specimens of the latter from San Antonio, San Ber- 

 nardino Co., measuring as follows: 



Total length, mm 370 385 404 352 409 Average about. .384 



" " tail, mm 178 161 195 187 155 " " --175 



Five examples of N. fu stipes from Portola, average as follows: 



Total length, mm 438 439 428 413 429 Average about. .429 



" " tail, mm 210 209 212 204 208 " " ..209 



21. Neotoma macro tis. 



Neotoma macrotis. Thomas, Ann. and Mag. Nat. Hist. , vol. 

 xii, 1893, p. 234. 



Fifty-six specimens as follows: 51, Carmel River, Monterey 

 Co.; 5, San Antonio, San Bernardino Co. 



All these examples appear referable to the species described by 

 Thomas (1.- c.). It is a considerably smaller animal than N. fus- 

 cipes, with a comparatively shorter tail, and has the hair on the 

 middle of the body beneath, from the chin to the tail white to the 

 roots. The tail is strongly bicolor, almost black above, and gray 

 of various degrees of paleness, sometimes nearly white, beneath. 



22. Neotoma fuscipes affinis subsp. nov. 



Fifty examples from following localities: 13, Mt. Hamilton, 

 Santa Clara Co. ; 37, Alum Rock Park, Santa Clara Co. 



This form of wood rat represents the gradation from N. fusci- 

 pes of the coast line to JV. f. streatorioi the interior. It is a larger 

 animal than the subspecies annectens, and its measurements will 

 average about the same as those of N. fuscipes. The chief char- 

 acter to distinguish it from N. fuscipes, besides its rather lighter 

 color, is its long bicolor tail and white feet, and from both /'- 

 * pes and annectens by having the hairs on all the central part of 

 body beneath, white to the roots. 



This subspecies may be described as follows: 



Back reddish brown, with the base of hair plumbeous, the lat- 

 ter appearing throughout the back, giving this part an appear- 

 ance as if lined with black, and making it darker than the flanks, 

 which are a pale reddish brown, this color extending over the 

 upper part of arms to the wrist. The thighs are paler brown 

 than the flanks, grading into dusky at the ankles. Ears rather 

 large, scantily haired, dark brown. Face a yellowish gray. 

 Eyes surrounded by a black ring. Whiskers longer than head, 

 black. Underparts, with feet and hands, and underparts of arms, 

 white. Hairs on center of body from chin to tail, white to the 



