542 



ZOOLOGY— BATRACHIANS ANO REPTILES. 



Bascanium constrictor, Linn., subspecies vestutum, Baird & Girard. — Cope, Check- 

 List N. A. Batrach. & Rept., 1875, 40. 

 ITab. — Pacific Region. 



The only species of the former genus Bascanium met with in Utah in 

 1872, although Ave were informed that B. constrictor had been observed. 

 This serpent is entitled "Blue Chaser" by the settlers, and appears to be 

 dreaded, for what reason we were unable to ascertain. 



Quite common. 



No. 



Locality. 



Date. 



Collector. 



3i 



262 

 236 O 



Provo, Utah 



July, 1872 



July, 1S74 

 Sept., 1S74 



Dr. H. C. Yarrow and H. W. 



Henshaw. 

 C. E. Aiken. 

 Prof. E. D. Cope. 



Pueblo, Colo 





BASCANIUM FLAGELLIFORME, Catesby, subspecies TESTACEUM, Say. 



Coluber testaceus, Say, Long's Exped. Rocky Mts., ii, 18:23, 48. — Harlan, Jour. Acad. 



Nat. Sci. Phila., v, 1827, 34S.— Holbrook, N. A. Herp., iii, 1842, 03.— 



Harlan, Med. & Phys. Res., 1S35, 113. 

 Masticophis testaceus, Baird & Girard, U. S. & Mex. Bound. Surv., ii, Rept., 1859, 20. — 



Bd., P. R. R. Rep., x, 1859, 43.— Cope, Proc. Acad. Nat. Sci. Phila., 



1SCG, 305. 

 Drymobius testaceus, Cope. Proc. Acad. Nat. Sci. Phila., I860, 561. 

 Psammophis flavigularis, Hallow., Proc. Acad. Nat. Sci. Phila., vi, 1852, 178. — Id., 



Sitgreave's Exp. Znfii & Col. Riv., 1853, 131-140. 

 Masticophis Jlavigularis, Baird & Girard, Cat. N. A. Rept., pt. i, Serp., 1S53, 99, 159. 

 Herpetodryas jlavigularis, Hallow., P. R. R. Rep., x, 1859, 12. 

 Bascanium flagelliforme, Catesby, subspecies testaccum, Say, Cope, Check-List N. A. 



Batrach. & Rept., 1875, 40. 



Hab. — Lower Californian and Sonar an Regions, with Nevada, Utah, and Texas. 



Very abundant in regions visited, and particularly noticeable on account 

 of diversity and mimicry of color, depending in a marked degree upon the 

 character of locality where found. 



No. 



Locality. 



Date. 



Collector. 



D 1 

 1' 

 P I 



-77 

 1-7 



Middle Utah 



Sept., 1S72 

 Aug., 1S73 

 .... do 



H. W. Henshaw. 



Do. 



Do. 

 Dr. H. C. Yarrow. 

 Dr. O. Loew. 





do 





July, 1S74 

 Sept., 1874 







