741 
EXPLANATION OF THE PLATES. 
PLATE XXXIII. 
Page. 
Fig. —Vulpesmacrourus, Baird.—Great-tailed fox, adult female.—Xo. 1325.—Fort 
Kearney, Xebraska... 230 
Skull natural size.—Figs. 1-5, as in jDlate XXXI. 
PLATE XXXiy. 
Fig. — Vulpesvelox .—Kit fox.—Xo. 1345.—Fort Kearny, Xebraska... 133 
Skull unusually large; natural size ; figs. 1-5, as in plate XXXI. 
PLATE XXXV. 
Fig. 1 —Vulpes {Urocyon) virginianus .—Gray fox.—Xo. 111.—Perry county, Penn ... 1 
Skull natural size ; a —skull from below; h —skull from above; c—skull 
from tlie side ; d —side of lower jaw ; e—lower jaw from above. 
Fig. 2 —Vulpes {Urocyon) littoralis, Baird.—Coast fox.—Xo. 2154.—San Miguel, Cali¬ 
fornia... 143 
Skull natural size ; a-e, as in fig. 1. 
PLATE XXXVI. 
Fig. 1 —Mustela pennantii, Erxl.—Fisber.—Xo. 1013.—St. Lawrence county, Xew 
York. 149 
Katber young ; skull natural size. The under view of the skull exhibits 
the transverse ridges of the skin of the palate, dried against the bone; 
a-e, as in plate XXXV. 
Fig. 2— 3£ustela americana, Turton.—American sable,—Xo. 1668.—Essex county, 
Xew York. 152 
Skull natural size. View of head from above to show its narrow, elongated 
shape, as compared with fig. 1 on next plate. 
Fig. 3 —Putorius noveboracensis, De Kay.—White weasel.—Xo. 624.—Carlisle, Pa. 166 
Male ; figs, a-e as in plate XXXV. 
PLATE XXXVII. 
Fig. 1— 3Iustela americana, Turton.—American sable.—Xo. 1163.—Essex county, 
Xew York. . 152 
Skull natural size ; a-e as in plate XXXV. 
Fig. 2 —Putorius vison. —Mink.—Xo. 753.—Carlisle, Penn.. 177 
Very old skull; natural size ; references as in preceding. 
Fig. 3 —Putorius vison. —Mink.—Xo. 718.—Carlisle, Penn. 177 
Immature skull with the milk teeth. Keferences as in preceding. 
PLATE XXXVIII. 
Fig .—Lutra canadensis. Sab.—Otter.—Washington, D. C... 184 
Adult skull.—Xatural size. Keferences as in Plate XXXI. 
