202 COLUBRID^. 



n. Yg. (V. 145; 0. 67). Vancouver Id. Col. Hawkins [0.1. 



0. $ (V. 142; C. 56). Victoria. Dr. Brown [0.]. 



p. S (V. 149 ; 0. 70). Oregon. Smithsonian Inst. 



[P.]. _ (As E. 



cooperi.) 



B. Scales in 17 rows ; no stripes. 



q. Hgr. (V. 141 ; C. 56). Sumass Prairies, Boundary Commis- 



Brit. Oolumbia. sion. 



C. Scales in 19 rows ; light dorsal stripes distinct. 



r. Yg. (V. 140; 0. 54). N. Orca Id., Gulf Lords of the Ad- 



of Georgia. miralty [P.]. 



s-f. d (V. 144 : 0. 65) & Oalifornia. Haslar Collection. 



$ (V. 152; 0.60). 



D. Scales in 19 rows ; no stripes, 

 w. $ (V. 145; 0. 61). California. Haslar Collection. 



2. Tropidonotus vagrans. 



Eutainia vagrans, Baird 8f Oir. Cat. N. Am. Mept. p. 35 (1853) ; 

 and Hep. U.S. Eaplor. Sun: E. E. x. pt. iii., Zuol. p. 19, pi. xvii. 

 (1857) ; Girard, U.S. E.tplor. Exped., Herp. p. 1.54, pi. xiv. figs. 5- 

 10 (1858) ; Cope, Proc. Ac. Philad. 1866, pp. 305, 307, and in 

 Wheelers Eep. U.S. Surv. W. IQOth Mer. v. p. -545 (1875); Coties, 

 Wheeler's Eep., t. c. p. 614, pi. xx. tig. 2 ; Coues ^ Yarrow, Bull. 

 U.S. Oeol Surv. iv. 1878, p. 274 ; E. Garm. Bull. Illin. Lab. iii. 

 1892, p. 268. 



Tropidonotus ordinatus, part., Giinth. Cat. p. 73 (1858). 



vagrans, Ja7i, Arch. Zool. Anat. Phys. iii. 1865, p. 215. 



sirtalis, var. vagrans, Garm. N. Am. Eept. p. 139 (1883). 



Euteenia biscutata. Cope, Proc. Ac. Philad. 1883, p. 21. 



■ vagrans plutonia, Yarrow, Proc. U.S. Nat. Mus. vi. 1883, 



p. 152. 



■ elegans, part., Cope, Proc. U.S. Nat. Mu£. xiv. 1892, p. 651. 



elegans brunnea et lineolata. Cope, I. c. 



Eye rather small, considerably smaller than in T. ordinatus. 

 Rostral broader than deep, visible from above ; internasals as long 

 as broad, as long as or a little shorter than the prefrontals ; frontal 

 once and a half to once and two thirds as long as broad, as long as 

 its distance from the end of the snout, shorter than the parietals ; 

 loreal as long as deep or a little longer ; one or two prse- and three 

 (rarely four) postoculars ; temporals 1 + 2 ; eight (rarely seven) 

 upper labials, fourth and fifth entering the eye ; five lower labials 

 in contact with the anterior chin-shields, which are usually about 

 as long as the posterior. Scales in 21 rows (rarely 23, specs. I andjp), 

 strongly keeled, outer row more or less distinctly keeled. Ventrals 

 152-179 ; anal entire ; subcaudals 53-90. Olive above, with four 

 series of black spots and two or three more or less distinct yellowish 

 longitudinal streaks ; a large black blotch on each side behind the 

 occiput ; upper surface of head and nape sometimes black ; a pair 



