1154 



REPORT OF NATIONAL MUSEUM, 189«. 



CROTALUS MOLOSSUS Baird and Girard. 



Crotalm molossiia Baird and Girakd, Cat. N. Anier. Kept., Pt. 1, Serp., 1853, p. 

 10.— Baihd, U. S. and Mex. Bound. Surv., Reiitiles, 1859, p. 14.— Cope, Check- 

 list N. Amer. Batr. Kept., 1875, p. 33.— Cope and Yarrow, U. S. Geog. Surv. 

 W. of lOOth Mer., V, 1875, p. 533.— Coi'K, Proc. Acad. Nat. Sci. Phila., 1883, 

 p. 12.— Ste.ineger, Rep U. S. Nat. Mus. for 1893, 1895, p. 424. 



Crotalus ornatus Hallowell, Proc. Acad. Nat. Sci. Phila., VII, 1854, p. 192; U. S. 

 Pac. R. R. Expl. Ropt., X, Piuke's Rept., 18.59, Reptiles, p. 23, 



Figures, U. S. Pac. R. R. Expl. Rept., Reptiles, XXIV, lig. 5; Parke's Rept., pi. ii; 

 U. S. and Mex. Bound. Surv., pi. ill. 



Muzzle broad; rostral small. Scal<>s between superciliaries small, 

 uniform, except the two anterior. Two frontal plates, four postfrontals. 

 Two intcrsuperciliary, all in contact. Five rows of scales between the 

 labials and suborbital row. Middle row not extending beyond the 



