540 



ZOOLOGY— BATBAOHIANS AND REPTILES. 



cies. The specimen marked Y Y Y has had the tail broken, and it is 

 capped by a horny segment. 



No. 



Locality. 



Date. 



Collector. 



63 

 Y Y Y 





Aug., 1S73 

 Sept., 1S74 



Dr. C. G. Newberry. 

 Dr. H. C. Yarrow. 







PITYOPHIS SAYI, Scblegel, subspecies BELLONA, Baird & Girard. 



«. SAYI. 



Coluber melanoleucns var. sayi, Uarlan, Jour. Acad. Nat. Sci. Pbila., v, 1827, SCO. — 



Id., Med. & Pbys. Res., 1835, 123. 

 Coluber sayi, Schlegel, Ess. Pbysiog. Serp., 1837, 157 (uot Coronella sayi, Holbrook, 



nor Coluber sayi, HARLAN, wbicb are Ophibolus). — Baird & Giuard, Cat. 



N. A. Kept., pt. i, Serp., 1S53, 151. 

 Pityophis sayi, Baird & Girard, Cat. N. A. Eept., pt. i, Serp., 1853, 152 (in text). — 



Kennicott apud Coop. & Suckl., Nat. Hist. Wasb. Terr., 1860, 300.— 



Hayd., Trans. Pbilo. Soc. Pbila., xii, 1802, 177 (not found in the Souoran 



region.) 



b. BELLONA. 



Churchillia bellona, Baird & Girard, Staus. Rep. Exp. Great Salt Lake, 1852, 350. 

 Pityophis affinis, Hallow., Proc. Acad. Nat. Sci. Pbila., vi, 1852, 181. — Hallow., 



Sitgreave's Rep. Zuiii & Col. Riv., 1853, 130, 146. 

 Pituophis bellona, Baiijd & Girard, Cat. N. A. Rept., pt. i, Serp., 1853, 06, 157. 

 Pityophis bellona, Kennicott apud Bd., P. R. It. Rep., x, 1859, 42. — Bd., P. R. R. 



Rep., x, 1859, 19.— Kennicott apud Bd., U. S. & Mex. Bound. Surv., ii, 



Rept., 1859, 18.— Cope, Proc. Acad. Nat. Sci. Pbila., 1866, 305.— Allen, 



Proc. Bost. Soc. Nat. Hist., xvii, 1874, 69. 

 Pityophis sayi, Schlegel, var. bellona, Baird & Girard, Cope, Cbeck-List N. A. 



Batrach. & Rept., 1875, 30. 



Had. — Souoran and Pacific Subregious, witb Nevada and Utab. 



Abundant throughout the regions visited. A full suite of specimens 

 secured, showing great diversity of coloration .and variability of head shields, 

 as alluded to by Professor Cope (Proc Acad. Nat. Sci. Pbila., 1860, 305). 



