738 EXPLANATION OF THE PLATES. 
PLATE IX. (47th and 35th parallels.) 
Fig. 1—? Dipodomys agilis, Gambel......csscccssscesssccesencecssseaeerecsssesseaeessaeassesaunecs “Mid 
Fig. 2—Neotoma occidentalis, Cooper.—Bush-tailed rat.—Shoalwater Bay....... gatacnns 496 
PLATE X. (41st and 47th parallels.) 
Fig. 1—Thomomys rufescens, Max.—Gopher.—Fort Pierre, Neb........sscssesseeseseeseeees 397 
Fig. 2—Geomys castanops, Lec.—Gopher.—Bent’s Fort........s0ese0 Soha isite se once amen roe 384 
PLATE XI. (35th parallel.) 
Fig. 1—Thomomys bulbivorus.—California gopher.—San Francisco..........sseccsesecesees 389 
a—view of soft parts of mouth; 6—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 bay, California............0000 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 ......sssessesseresseeneeees 402 
References to details same as the preceding. 
PLATE XIII. (35th parallel.) 
Fig.—Lepus audubonii, Baird.—California rabbit. —Califormia........sseccessssersseeeeenees 608 
PLATE XIV. (385th parallel.) 
Fig.—Lepus trowbridgii, Baird.—Califormia,..... ....ccsseccssssccnsccecesccennces snsceeecaceone . 610 
PLATE XV. (47th parallel.) 
Fig.—Lepus washingtonii, Baird.—Red hare.—Washington Territory........ eer eeeeceeee 583 
PLATE XVI. (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 ; 6—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 townsendit, var. californicus —California mole.—San Francisco.—From 
DOGTUIN.. Sevens tach 0. leet aR I casa tied acd URRITOCRS MR ee es oe 65 
a—muzzle from above ; b—muzzle from below ; c—under surface of palm ; 
d—under surface of hind foot ; e—tail. 
