EXPLANATION OF THE PLATES. 751 
V 
Page. 
Fig. 13— Cervus virginianus, Bodd.—Deer.—No. 3062.—Essex county, New York. 648 
Eight horn from inside. Size 4.16 inches to the inch of the figure. 
Fig. 14 —? Cervus leucurus,T)o\xg \.—White-tailed deer.—No. 2920.—Yellowstone river 651 
Eight horn from inside. Size, 3.68 inches to the inch of the figure. 
Fig. 15 —? Cervus leucurus, Dough—No. 658.—Upper Missouri. 658 
Left horn from inside. Size, 5.04 inches to the inch of the figure. This 
horn is remarkable for the amount of flattening and consequent elongation, 
antero-posteriorly, of the cross section at any point. 
Fig. 16 —? Cervus leucurus, Dough—No. 2928.—White Earth river, Nebraska. 651 
Both horns from the left. Size, 3.91 inches to the inch of the figure. This 
horn is much compressed antero-posteriorly, at its terminal or upper 
half, as in the moose or reindeer. It may possibly belong to a C. mac- 
rotis, hut is labelled by Lieut. Warren C. Virginianus, and most probably 
is the white-tail deer of the Upper Missouri. 
Fig. Vl — Cervus leucurus, Dough—No. 3203.—Whidby’s island, Puget’s Sound. 651 
The true C. leucurus of Douglass. Eight horn from inside. Size, 5.09 
inches to the inch of the figure. 
Fig. 18— ? Cervus leucurus, Dough—No. 829—Big Sioux, Nebraska. 652 
Head from before, showing the remarkable development of snags. Size, 
6.20 inches,to the inch of the figure. 
Fig. 19— Cervus macrotis. Say.—Mule deer.—No. 831.—Big Sioux, Nebraska. 657 
Eight horn from inside. Size, 8.23 inches to the inch of the figure. 
Fig. 20— Cervus macrotis. Say.—No. 2918.—Yellowstone. 657 
Eight horn from inside. Size, 5 inches to the inch of the figure. 
Fig. 21— Cervus columhianus, Eich.—Black-tailed deer.—No. 1618.—-Monterey, Cal... 660 
Eight horn from inside. Size, 8.30 inches to the inch of the figure. 
Fig. 22— Cervus columhianus, Eich.—No. 3204.—Puget’s Sound. 660 
Eight horn from inside, showing the absence of fork on one side, as well as 
of basal snag. Size, 5.74 inches to the inch of the figure. 
Fig. 23— Antilocapra americana, Ord.—Prong-horned antelope. 668 
End of muzzle, ^as viewed from above and in front, (taken from a well 
mounted head Fig. 24. Under surface of left front hoof. 
Fig. 24.— Ovis montana, Cuv.—Bighorn. 674 
Male. End of muzzle, as viewed from above and in front, (taken from the 
mounted specimens brought by Captain Stansbury.) 
Fig. 25—Under surface of left front hoof.. 674 
Fig. 26— Ovis montana, Cuv.—Bighorn.—Upper Missouri... 675 
Male. Left horn from the left side. 
Fig. 27—The same, from the front. 675 
Fig. 28—Base of the horn. 675 
Scale, 4 inches to the inch of the figure. 
Fig. 29— Ovis montana, Cuv.—No. 2593.—Bridger’s Pass. 676 
Female. Left horn from the left side. Size, 3.42 inches to the inch of the 
figure. 
