152 OPHIDIA. 



rest ; outermost smooth. Color above light olive-brown, with con- 

 spicuous small dark spots, in a series, from head to origin of the tail. 



SYN. Eutaenia leptocephala, B. & G. Catal. N. Amer. Kept. I, 1853, 29. 



DESCR. The head is narrow and depressed; its upper surface being 

 nearly plane, from the occiput to the prefrontal plates. The labials 

 are rather narrow. The eye is rather small. There are two nearly 

 equal and large anteorbitals, and three subquadrangular postorbitals, 

 almost equal also in size. The dorsal scales are disposed upon nine- 

 teen rows; the exterior row broader than usual, and not carinated ; 

 the second row is smaller than the first, but broader also than usual, 

 and but faintly carinated ; the remaining rows are all distinctly cari- 

 nated. The abdominal scutellae are from one hundred and forty-four 

 to one hundred and forty-nine in number, and the subcaudal ones 

 from fifty-nine to sixty-six pairs. 



The color is dull light olive-brown or light chocolate above ; pale 

 greenish-slate beneath. When the epidermis is removed, the subjacent 

 skin of the abdomen is seen minutely punctured and clouded with 

 black, so as to impart this latter color to the whole, except near the 

 sides. A vertebral dull yellowish line, covering but a single row of 

 scales, appears more prominent than the rest. On each side of this 

 vertebral line are two series of subquadrate black blotches, about one 

 hundred and thirty from the head to the vent, on about every other 

 scale or even closer, and showing very conspicuously on the clear ground 

 color. The bases of all the scales on the sides of the body are more or 

 less black, occasionally showing beyond the incumbent edges. There is 

 little or no indication of a lateral stripe. The lower series of black 

 spots is continued into a faint line along the side of the head to the orbit. 



In one specimen, the coloration is less defined, showing a greenish- 

 white color above, with tessellated small spots of black. 



Loc. Found, with the preceding species, up Puget Sound, Oregon. 



Plate XIII, fig. 7, represents Eutaenia leptocepliala, size of life. 



Fig. 8, is a profile of the head. Fig. 9, an upper view ; 



Fig. 10, an under view ; and 



Fig. 11, a front view of the same region. 



Fig. 12, shows the dorsal scales. 



Fig. 13, the vent, and surrounding scutellae. 



