EXPLANATION OF THE PLATES.* 



PLATE I. (California and Oregon.) 



Fig. Vulpes littoralis, Bd. Coast fox. Island of San Miguel, California ? 143 



PLATE II. (47th parallel.) 



tfig- ^-Lynx fasciatus, Raf. Red cat, adult. Washington Territory 96 



Fig. 2?Felis concolor, L. Panther, very young. Washington Territory 83 



(This may possibly belong to the preceding species.) 



PLATE III. (California and -Oregon.) 



Fig. I Putorius xantJiogenys. Yellow-cheeked weasel. San Francisco, California... 176 

 Fig. 2Spermophilus beecheyi, Rich. California ground squirrel. Tejon Pass, Cal... 307 



PLATE IV. 041 st parallel.) 



Fig. 1 Spermopliilus grammurus. Rock squirrel. Fort Webster, N. M 310 



Fig. 2 Cynomys gunnisonii, Baird. White-tailed prairie dog. Cooachatope Pass .... 335 



PLATE V. (41st and 47th parallels.) 



Fig. 1 Dipodomys ordii, Woodh. Kangaroo rat. Rio Grande valley 410 



Fig. 2 Tamias townsendii, var. cooperi. Puget's Sound 301 



PLATE VI. (41st parallel.) 



'Fig.Sciurusfremontii, Towns. Fremont's squirrel. Rocky Mountains 27 



PLATE VII. (47th parallel. ) 



Fig. Sciurus douglassii var. suckleyi. Steilacoom. Variety with the hair on the 



under parts annulated , 275 



PLATE VIII. (35th parallel.) 



Fig. 1 Hesperomys texanus, Woodh. Texas mouse. Pecos river 464 



Fig. 2 Perognatusflavus, Baird. Fort Union, Neb 423 



Fig. 3 Hesperomys boylii, Baird. Middle fork American river 471 



*The following list of illustrations embraces all that have been prepared for the present volume, as well as those intended to 

 accompany the special reports of the different railroad parties. The plates of the latter series bear on their upper border the 

 official name of their respective surveys, as mentioned also in brackets after the number of the plate in the list, and it is to the 

 reports of the parties thus indicated that reference is to be made for any figures not found in this volume. The names of the 

 officers in command of the different lines of survey are as follows : 



4?TH PARALLEL. Governor I. I. Stevens in command. Zoologists, Dr. George Suckley, TJ. S. A., and J. G. Cooper, M. D. 



38th, 39th, 41st PARALLEL. Captain J. W. Gunnison first in command, succeeded by Captain E. G. Beckwith. Zoologists 

 Mr. Kreutzfeldt and Mr. Snyder. 



35-TH PARALLEL. Captain A. W. Whipple in command. Zoologists, C. B. R. Kennerly, M. D., and H. B Mollhausen. 



32D PARALLEL. Captain J. Pope in command. 



CALIFORNIA. Lieutenant R. S. Williamson in command. Zoologist, A. L. Heermann, M. D. 



CALIFORNIA AND OREGON. Lieutenant R. S. Williamson in command. Report presented by Lieutenant H. L. ot. 

 Zoologists, E. Sterling, M. D., and J. S. Newberry, M. D. Report prepared by the latter. 



Additional references to the expeditions under which the collections described were made, will be found in the introductory 

 remarks at the beginning of the volume. 



The numbers placed after the specific names are the catalogue numbers of the particular specimen, which constitutes tho 

 original of the figure . 



93 L 



