618 ZOOLOGY— REPTILES AND BATRACFIIANS OF ARIZONA. 



PUyophis sayi, Bd. & GlR., Oat. N. A. Rept., 1853, 152 (in text).— Kenn. apud Coop. 

 & Suckl., Nat. Hist, Wasb. Terr., 1860, 300, pi. 22.— Hayd., Trans. Am. 

 Phil. Soc, xii, 1862, 177. 



b. BELLONA. 



GhurcMUia'bellona, Bd. & Gir., Staus. Rep. Exp. Great Salt Lake, 1852,350. 



Pituophis bellona, Bd. & Gir., Cat N. A. Rept., 1853, 66, 157. 



PUyophis bellona, Kenn. apud Bd., P. R. R, Rep., x, 1859, Williamson's Route, Reptiles, 



42.— Bd., P. R. R. Rep., x, 1859, Beckwith's Route, Reptiles, 19.— Kenn. 



apud Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, 1859, Reptiles, 18.— Cope, 



Proc. Acad. Nat, Sci. Phila., 1866, 305.— Allen, Proc. Bost, Soc. Nat, Hist., 



xvii, 1874, 69. 

 PUyophis affinis, HALLOW., Proc. Acad. Nat, Sci. Phila., vi, 1S52, 181. — Id., Sit- 



greave's Exp. Zuui & Col. Riv., 1S53, 130, 146, pi. 10. 

 PUyophis sayi var. bellona, Cope, Check List, 1875, 39. 



Although perfectly harmless, this species is commonly called " Adder", 

 like Heterodon nasicns and other blotched serpents, more or less resembling 

 some of the venomous ones ; it is also known as Bull Snake. P. bellona is 

 one of the most abundant of all the species about Fort Whipple, where 

 specimens could be found at any time during the summer in the grass and 

 woods. Numbers used to be killed in the fort and surrounding buildings. 



The great variability of this species, not only in color, but also in the 

 details of the plates of the head, points not at first recognized, necessitates 

 the reference of bellona to the longer known Coluber sayi. The use of the 

 name "sayi" in this connection is to be carefully discriminated from its 

 employ for an altogether different species of Opkibolus. 



In addition to the foregoing, Professor Cope indicates a subspecies 

 mexicana (D. & B.), as occurring in the Central and Sonoran Regions. Of 

 this form I know nothing. 



59. Pityophis elegans (Kenn.) Cope. 



Arizona elegans, Kenn.. apud Bd., U. S. & Mex. Bound. Surv., ii, pt. ii, Reptiles, 18. 

 PUyophis elegans, Cope, Check-List, 1875, 39. 



" Sonoran Region." 



60. Ophibolus getulus boylii, Bd. & Gir. 



Opkibolus boylii, Bd. & Gir., Cat. N. A. Rept., 1853, 82.— Bd., P. R. R. Rep., x, 

 1859, Williamson & Abbott's Route, Reptiles, 11.— Id., U. S. & Mex. Bound. 

 Surv., ii, pt, ii, 1859, Reptiles, 20.— Cope, Proc. Acad. Nat. Sci. Phila., 

 1866,305. 



