OPHIDIA— CROTALIDAE— OEOTALUS LUCIFER. 529 



foot is that of B. montesumee and B. catesbiana. It is also quite similar to 

 the variety of JR. temporaria from California, called B. draytonii by Baird 

 and Girard, and B. longipes by Hallowell. The feet are shorter, the hind 

 foot being twice as long as the head to the posterior border of the tympanum, 

 -while in B. t. draytonii it is 2.5 times as long. The B. onca lacks the black 

 cheek-patch of the B. temporaria. 



Specimen secured in 1872 in Utah by Dr. H. C. Yarrow. 



The plate affords view of dorsum and mouth of this species. 



OPHIDIA. 



SOLENOGLYPHA. 



Fam. CROTALIDAE 



Genus CROTALUS, Linn. 



CROTALUS ADAMANTEUS, Beauvois, subspecies ATROX, Baird & Girard. 



Crotalus atrox, Baird & Girard, Cat. N. A. Kept., pt. i, Serp., 1853, 5-156.— Bd. P. R. 



R. Rep., x, 1859, 39.— Id., U. S. & Mex. Bound. Surv., ii, Rept., 1859, 14. 

 Caudisona atrox, Cope, Mitchell's Res., 1SG1, 121. — Id., Proc. Acad. Nat. Sci. Pliila., 



1806, 309. 

 Crotalus adamanteus, subspecies «hw, Cope, Check-List N. A. Batrach. & Kept., 1875, 33. 



Hab. — Indian Territory and Texas to Souora and Southern and Lower California. 

 Rather uncommon. 



No. 



Locality. 



Date. 



Collector. 



446 



Fort Wingate, N. Mex 



July 26, 1873 



H. W. Hensliaw. 





CROTALUS' LUCIFER, Baird & Girard. 



Crotalus lucifer, Baird & Girakd, Proc. Acad. Nat. Sci, Pbila., vi, 1852, 171. — Id., 



Cat, N. A. Rept., pt. i, Serp., 1S53, 6.— Girard, Herp., U. S. Exp. Exped., 



, 185S, 187.— Bd., P. R. R. Rep., x,.1859, 10.— Coop. & Suckl., Nat, Hist. Wash. 



Terr., I860. 18G0, 295.— Cope, Check-List N. A. Batrach. & Rept., 1875, 33. 



34 z 



