744 EXPLANATION OF THE PLATES. 



PLATE XXXIII. 



Page. 



Fig. Vulpes macrourus, Baird. Great-tailed fox, adult female. No. 1325. Fort 



Kearney, Nebraska , 139 



Skull natural size. Figs. 1-5, as in plate XXXI. 



PLATE XXXIY. 



Fig. Vulpes velox. Kit fox. No. 1345. Fort Kearny, Nebraska 133 



Skull unusually large ; natural size ; figs. 1-5, as in plate XXXI. 



PLATE XXXV. 



Fig. 1 Vulpes (Urocyori) virginianus. Gray fox. No. 771. Perry county, Penn ... 1 

 Skull natural size ; a skull from below ; b skull from above ; c skull 



from the side ; d side of lower jaw ; e lower jaw from above. 



Fig. 2 Vulpes (Urocyon) littoralis, Baird. Coast fox. No. 2154. San Miguel, Cali 

 fornia 143 



Skull natural size ; a-e, as in fig. 1. 



PLATE XXXVI. 



Fig. 1 Mustela pennantii, Erxl. Fisher. No. 1073. St. Lawrence county, New 



York 149 



Bather 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. 

 Yig. 2 Mustela americana, Turton. American sable. No. 1668. Essex county, 



New 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. No. 624. Carlisle, Pa 166 



Male ; figs, a-e as in plate XXXV. 



PLATE XXXVII. 



Fig. 1 Mustela americana, Turton. American sable. No. 1163. Essex county, 



New York 152 



Skull natural size ; a-e as in plate XXXV. 

 Fig. 2 Putorius vison. Mink. No. 753. Carlisle, Penn 177 



Very old skull ; natural size ; references as in preceding. 

 Fig. 3 Putorius vison. Mink. No. 718. Carlisle,, Penn 177 



Immature skull with the milk teeth. References as in preceding. 



PLATE XXXVIII. 



Fig. Lutra canadensis, Sab. Otter. Washington, D. C 184 



Adult skull. Natural size. References as in Plate XXXI. 



