296 Field Columbian Museum — Zoology, Vol. III. 



Neotoma fuscipes mohavensis. 



Neotoma f. mohavensis Elliot, Pub. Field Columb. Mus., in, 

 [903, p. 246. Zoology. 



7 Specimens from Oro Grande. 



This new form of wood rat was procured at only one locality, 

 "in the thickets bordering the Mohave River at Oro Grande," 

 where were also found the large nests. The river sinks in sum- 

 mer beyond this point and the willows and rat nests cease a few 

 miles lower down the stream. At the headwaters of the Mohave 

 in the San Bernardino Mountains this race meets N. f. macrotis 

 of the Coast Slope. 



Neotoma fuscipes dispar. 



Neotoma f. dispar Merr., Proc. Biol. Soc. Wash., 1894, p. 124. 

 Elliot, Syn. N. Am. Mamm., 1901, p. 160. 



11 Specimens: 10 Lone Pine (topotypes), 1 Mount Whitney. 



This race was apparently scarce, for it was met with in only the 

 two places named above, and the individual from Mount Whitney 

 was a young one only about half grown, agreeing completely, 

 however, with one of about the same age from Lone Pine. 

 Mr. Heller states that "along the streams of the east slope of the 

 Sierras and at Lone Pine the nests of this wood rat were not 

 common. Their usual situation was in thickets of wild roses 

 or willows near streams. The animal probably ascends the 

 streams to the Transition Zone. None were observed below 

 Lone Pine in the bed of Owens River." 



Neotoma fuscipes cnemophila. 



Neotoma f. cnemophila Elliot, Pub. Field Columb. Mus., in. 

 1904, p. 267. 



8 Specimens: 5 Lockwood Valley, Mount Pinos (type and 

 topotypes), 1 Castac Lake, 1 Bailey's Ranch, 1 Fort Tejon. 



"In the mountains near Fort Tejon this wood rat was abun- 

 dant. The nests were usually of large proportions, and con- 

 structed in oak chaparral or in the thorny thickets of Kibes. 

 About Lockwood Valley on the south slope of Mt. Pinos the 

 nests were placed at the bases of tlie pifion pines, the nuts of 

 which form an important food supply for the rats. A few imma- 

 ture were secured at 8,000 feet altitude on Kern River (but not 

 preserved), and this evidently represents the upper limit of 

 their range." 



