60 



EXPLANATION OF PLATES, 



:Eig. 2— Lynx macMlatus?—^o. 1371.— Matamoras.— Skull, with the temporary teeth, natural 



size. Keferences a-e. 



PLATE XVI. 



Cams latranSy Say, — No. 999. — Copper Mines, New Mexico. — Skull reduced to about two-thirds 



natural size. Eeferences a-e. 



PLATE XVIL 



Fig. 1 — Putorius frenatiiBj And. & Bach, — No, 1172. — Lower Kio Grande, — Skull of adult, 



o-e 



Fig. 2 — Putonus frenatus^ Aud. & Bach. — No. 1725. — Matamoras. — Skull of young, with the 



temporary teeth ; natural size. Eeferences a-e. 

 Fig. 3 — Mephitis hicolor^ Gray. — No. 1621. — Indianola, Texas. — Adult ; skull natural size. 



Eeferences a-e. 



PLATE XVIII. 



Procyon hernandezii^ Wiegm. — No. 1386. — Matamoras, Mexico. — Adult ; skull natural size 



Eeferences a-e. 



PLATE XIX. 



■r 



Ursus cinnamomeus f — No. 992. — Copper Mines. — Adult skull. Eeduced to less than two- thirds 



Eeferences a-e. 



PLATE XX. 



Min 



nent teeth ; cc-e, as in the preceding plates ; all reduced to one-third the natural 

 size ; / — left upper teeth from the outside ; g — do. from below ; h — left Lower 



■ 



from the outside ; i — do. from above ; /-^, natural size. 



PLATE XXI. 



Fig. 1 — SciuriLs limitis^ Baird. — No. 1265.— Devil's river, Texas. — Skull natural size. Eefer- 



ences a — e. 



Fig. 2 — Sciuruscastanonotus^BBHrdi. — No. 1107. — Copper Mines, New Mexico. — Skull natural 



size. Eeferences a-e. 



Fig, 3— /Spe 



No. 1255, — Santa Catarina, Mexico. — Skull. Eeferences 



/—left upper molars 



molar from 



/ 



& 



Fig, 4 — Spermophilus 



{<^-9df 



No. 2419.— Fort Yuma, Cal.— Skull. Eeferences as 



1 

 ' 

 1 



