OROCODILIANS, LIZARDS, AND SNAKES. 885 



OSCEOLA DOLIATA TRIANGULA Boie. 



Ophibohis doUatua triangulus Cope, Check-list X. Anier. Rept. Batr., 1875, p. 37; 

 Proc. U. S. Nat. Mus., XI, 1888, p. 383. 



Coluier trianfjulum Boie, Isis von Oken, 1827, p. 537. 



Ablabes triauguliim Dumeril aiul Bibron, Erp. G6n., YII, 18.54, p. 315. — Hallo- 

 well, Proc. Acad. Nat. Sci. Phila., 1856, p. 245. 



Lampropeltis triangitia Cope, Proc. Acad. Nat. Sci. Pbila., 1860, p. 2.56. 



Pseudoclaps Y Bertiiold, Abh. k. Gess. Wiss., Gottiagen, 1, 1843, p. 67, pi. i, figs. 

 11, 12. 



Coluber eximius DeKay, N. York Fauna, Rept., 1842, p. 38.— Haulan, .lourn. Acad. 

 Nat. Sci. Phila., 1827. p. 360.— Holijeook, N. Amer. Herpt., Ill, 1842, pi. 15.— 

 Gunther, Cat. Col. Snakes Brit. Mus., 1858, p. 91. 



(>2)hiholus eximius ISaird and Girard, Cat. N. Amer. Rept., 1858, p. 87. 



CoroneUa irian<jidHm Boulengeh, Cat. Snakes Brit. Mus., II, 1894, p. 200. 



Muzzle ratlier broader, and the head more depressed than in the 

 species of the genus allied to 0. getulus; in other respects generally 

 similar, like them having all the scales hexagonal, those on the back 

 scarcely narrower than those on the sides, although rather more elon- 

 gated than usual. Vertical longer than broad, shorter than the occi- 



Fig. 210 



Osceola doliata tkiangula Boie. 



= 1. 



■Westchester County, New York. 



Collection of E. D. Cope. 



pitals. General color above yellowish-gray, with a dorsal series of 

 large blotches, tifty-five in number from the head to the tip of the tail, 

 the forty- fifth opposite to the anus. These are. transversely elliptical, 

 about four scales long, covering twelve to fifteen scales across the back 

 (more anteriorly than posteriorly), and separated by intervals of one 

 and a half to two scales, all of nearly the same width. The spots them- 

 selves are grayish-brown or chocolate, with a broad black border, and 

 finely mottled internally (as is the ground color on the sides) with black. 

 The blotches become narrower posteriorly; on the tail tlieir confluence 

 with the lateral series forms black half rings. On each side, and involv- 

 ing the second to the fifth rows, is another series of much smaller and 

 nearly circular blotches, black with the centers brown.. These alter- 

 nate with the dorsal spots. Alternating with the series just described 

 is still another similar to it, but entirely black, on the nmrgin of the 

 abdomen, and on the contiguous spots of the first, second, and third 

 rows. These two lateral series are sometimes confluent. The anterior 

 dorsal blotch is elongated, so as to cover the })osterior half of the 



