EXPLANATION OF THE PLATES. 745 



PLATE XXXIX. 



Page. 



Fig. 1 Taxideaberlandieri, Baird. Mexican badger. No. 1391. Matamoras, Mexico. 205 

 Mature skull. Natural size. Eeferences as in Plate XXXV. 



Fig. 2 Taxidea labradoria. Missouri badger. No. 1178. Bois de Sioux, Neb 202 



Under view of left side of upper jaw, to show the differences from T. 



berlandieri. 



Fig. 3 Mephitis mesoleuca, Licht. White-backed skunk. No. 1886. Western Texas. 192 

 Very old skull ; the sutures all obliterated and the teeth much worn. 

 References as in fig. 1. 



PLATE XL. 



Fig. Procyon hernandezii, Wieg. Black-footed racoon. No. 1875. Bodega, Cal 

 ifornia 212 



Rather immature skull, the posterior portion wanting. References as in 

 Plate XXXI. 



PLATE XLI. 



Fig. Ursus horribilis, Ord. Grizzly bear. No. 1219. Pacific coast 219 



Very old skull. Figs. 1-5 as in Plate XXXI. All about one-third 

 natural size. Fig. 6, left upper teeth from outside. Fig. 7, left upper 

 teeth from below. Fig. 8, left lower teeth from outside. Fig. 9, left 

 lower teeth from above. 



PLATE XLII, 



Fig. Ursus horribilis, Ord. Grizzly bear. No. 1220. Pacific coast 219 



Rather immature skull ; the deciduous teeth just shed. References as in 

 Plate XLI, except that figs. 1 5 are half natural size. 



PLATE XLIII. 



Fig. 1-9 Ursus arctos, L. Brown bear. No. 1033. Sweden . 223 



Marked two years old. About the same age as the skull on the preceding 

 plate. References as in Plate XLI, except that figs. 1-5 are one half 

 natural size. 

 Figs. 10-13 Ursus americanus, Pallas. Black bear. No. 1154. Prairie Mer Rouge, 



Louisiana 225 



Teeth of natural size. Fig. 10, left upper teeth from outside ; fig. 11, 

 left upper teeth from below ; fig. 12, left lower teeth from outside ; fig. 

 13, left lower teeth from below. 



PLATE XLIV. 



Fig. Ursus maritimus, L. Polar bear. No. 903. Greenland 229 



Adult skull. References as in Plate XLI ; figs. 1-5 one-third natural size. 

 94 L 



