OPHIDIA— COLUBKIDAE-PITYOPHIS SAYI, MEXICAN US. 530 



This species is very closely allied to P. liexalepis* Cope, from Arizona, 

 discovered by Dr. Cones, but lias a larger tail, four times in length instead 

 of three, besides other specific differences. 



Is not common. 



No. 



Locality. 



Date. 



Collector. 



R 4 





Oct., 1S73 



H. W. Henshaw. 





Genus CYCLOPHIS, Gunther. 

 CYCLOPIIIS VERNALIS, De Kay. 



Cohilcr vernalis, De Kay, MSS.— Harlan, Jour. Acad. Nat. Sci. Phila., v, 1827, 361.— 

 Id., Med. & Pbys. Pes., 1835, 124.— Storer, Mass. Eept., 1839, 224.— Hol- 

 BROOK, N. A. Herp., iii, 1842, 79, pi. xvii. — De Kay, N. Y. Fauna, Reptiles, 

 1842, 40, pi. xi, f. 22.— THOMP., Hist. Venn., 1S42, 117. 



Cliloroscma vernalis, Baikd & Gieard, Cat. N. A. Kept. pt. i, Serp., 1853, 108. 



Eerpeiodryas vernalis, Hallow., Proc. Acad. Nat. Sci. Phila., viii, Oct., 1850, 243. — 

 Tenney, Nat. Hist., 1800, 304. 



Cijclophis vernalis, Cope, Check-List N. A. Batrach. & Kept., 1875, 38. 



Hab. — Eastern and Austroriparian Regions ; rare in the latter. 



The specimen indicated below is the only one collected by the expedi- 

 tion, and is the first indication of the existence of the species in the Rocky 

 Mountain region. 



. No. 



Locality. 



Dale. 



Collector. 



QL5 



Abiquiu, N. Mex 



Aug., 1S74 



Dr. O. Loevv. 



Genus PITYOPHIS, Holbrook. 



riTYOPHIS SAYI, Schlegel, subspecies MEXICANUS, Dumeril & Bibron. 



Pityophis mexicanus, Dumeril & Bibron, Exp. (Jen., vii, 230. 



Pityophis myi Schlegel, subspecies mexicanus, Dumeril & Bibron, Cope, Check- 

 List N. A. Batrach. & Kept., 1875, 39. 



Hab. — Souoran and Central Regions, entering the Texan District. 



Quite abundant, showing same diversity of coloration as following spe- 



* Phimothyra grahamiw, subspecies hexalepis, Cope, Check-List N. A. Batrach. &■ Rept., 



1873, 38. 

 Phimothyra hexalepis, Proc. Acad. Nat. Sci. Phila.. 1800, 305. 



