738 
EXPLANATION OF THE PLATES. 
PLATE IX. (47th and 35th parallels.) 
Page. 
Fig. 1— ? Dipodomys agilis, Gambel..... 414 
Fig. 2— Neotoma occidentalism Cooper.—Bush-tailed rat.—Shoalwater Bay. ........ 496 
PLATE X. (41st and 47th parallels.) 
Fig. 1— Thomomys rufescens , Max.—G-opher.—Fort Pierre, Neb. 397 
Fig. 2 —Geomys casianops, Lee.—Gopher.—Bent’s Fort. 384 
PLATE XI. (35th parallel.) 
Fig. 1— Thomomys bulbivorus. —California gopher. —San Francisco. 389 
a —view of soft parts of mouth; b —under view of left fore foot; c—side 
view ; and d —under view of the longest claw ; e—under view of the left 
hind foot. 
PLATE XII. (35th parallel.) 
Fig. 1 —Thomomys laticeps, Baird.—Gopher.—Humboldt hay, California. 392 
1. a —under view of left fore foot; 1. b —side view, and 1. c—under view of 
its longest claw ; 1. d —under view of left hind foot. 
Fig. 2 —Thomomys fulvus .—Gopher.—San Francisco Mountains. 402 
References to details same as the preceding. 
PLATE XIII. (35th parallel.) 
Fig.— Lepus audubonii, Baird.—California rabbit.—California... 608 
PLATE XIY. (35th parallel.) 
Fig.— Lepus trowbridgii , Baird.—California. 610 
PLATE XY. (47th parallel.) 
Fig.— Lepus washingtonii, Baird.—Red hare.—Washington Territory... 583 
PLATE XYI. (35th parallel.) 
Fig. —Antilocapra americana , Ord.—Prong-horn antelope, young male.—Texas.— 
The figures drawn from a living animal brought to Washington. 666 
PLATE XVII. 
Fig. 1 —Scalops aquaticus. —Mole.—Carlisle, Pa.—Drawn from an alcoholic specimen 60 
a —view of muzzle from below ; b —view of muzzle from above ; c—view of 
muzzle from the side ; d —under surface of left palm ; e—upper surface 
of hind foot; f —tail, showing the naked portion. 
Fig. 2— Scalops townsendii , var. californicus —California mole.—San Francisco.—From 
dry skin. 65 
a —muzzle from above ; b —muzzle from below ; c—under surface of palm ; 
d —under surface of hind foot; e —tail. 
