CROCODILIANS, LIZARDS, AND SNAKES. 



901 



Measurements. — Total length, 303 mm.; tail, 50 mm. 



Color above a yellowish ferruginous, pale upon the head, very deep 

 upon the tail. Upon careful examination there are to be seen very 

 indistinct erect half-bands upon each side, extending from the tirst to 

 the central rows of scales, alternating with other. Posteriorly they 

 become entirely transverse. Belly salmon color, passing into orange 

 ferruginous upon tlie urosteges. Each gastrostege has a large central 

 area of yellow, bordered on each side with wax yellow ; these colors, 

 however, blen<l ])osteriorly, and are scarcely visible. In a specimen 

 from Key West they are not distinguishable. In this specimen tliere 

 are three postoculars on one side and the fifth labial scarcely enters 

 the orbit. 



Cat. Nos. Gastrosteges. Uro8te<;es. Length. Tail. 



inm. mm. 



528(5 126 + 1. 68. 302. 71. 



13806 128 + 1. 82. 245. 66. 



Natrix usfa Cope. 



NATRIX GRAHAMII Baird and Girard. 



Natrix grdhamii Cope, Proc. U. S. Nat. Mus., XIV, 1892, p. 668. 



Regina grahamil Baird and Girard, Cat. N. Amer. Rept., Pt. 1, Serp., 1853, p. 47. 



Tropidonotiis t/raliamii Gunther, Cat. Col. Snakes Brit. Mus., 1858, p. 78. — Cope, 



Check-list N. Amer. Batr. Rept., 1875, p. 42.— Boulenger, Cat. Snakes Brit. 



Mus., I, 1893, p. 210. 



Brown, with a broad band of yellow on the flanks, margined below 

 with a black vitta. Abdomen unicolor, yellowish. Dorsal rows of 

 scales nineteen, all carinated. 



Head elongated, slender, depressed, and flattened above, slightly 

 sloping on the snout. Rostral higher than in i\^. leheris, internasals 

 longer than wide. Elongated and iwsteriorly pointed, measuring from 

 their anterior h)wer to the line of the nares. Front plate subpentag- 

 oual, narrower anteriorly. Superciliaries proportionally well developed, 

 as also the anterior pair of frontals. Two anteorbitals, lower one a 

 little the larger. Two postorbitals, rarely a very small and almost sub- 

 orbital third. Loreal elevated. Upper labials seven, fifth and sixth 

 largest. Lower labials ten, fifth and sixth largest. Dorsal rows of 

 scales twenty, all carinated. The three outer rows sensibly the largest, 

 and truncated posteriorly, while the remaining ones are tapering. 



In the adult tlie dorsal region is uniformly brown. The (irst, second, 

 and most of the third outer rows of scales are straw color. This yel- 



