176 [Ocroszr, 
ever assume still more this character in E. multicarinata, the scales of which 
are considerably larger than in the species here described. . 
From California. 
Exicaria Granpis, B. and G. Fourteen longitudinal rows of carinated scales 
on the upper part of the body; the carina on the sides is but slightly apparent. 
Fifty transversal series from the meatus to the origin of the tail. Tail itself 
one and a half times as large as the body, conical and tapering. Twelve rows 
of abdominal scales, subquadrangular in shape. Color olivaceous brown, with 
irregular, transverse and narrow bands of brownish black tipped posteriorly 
with white. 
This species is intimately related to the preceding, from which it differs in the 
structure of the fronto-nasal plates and the shape of the scales generally. The 
limbs are also shorter. 
Inhabits Oregon. 
Troriponotus orpinoiwEs, B. and G. Is distinguished from T. infernalis 
(Coluber infernalis, Bl.), to which it bears the closest resemblance, by a 
smaller and more slender head and likewise a smaller eye. There are two an- 
terior orbitals, whilst JT. infernalis has but one. The scales constituting the 
lateral row, on either side of the abdomen, are larger and not keeled. The scales 
on the upper part of the tail are likewise smooth. The general color is yellow- 
ish green with a dorsal yellow line; sometimes also there exists a lateral band 
of yellow or whitish yellow, between which and the dorsal line, are two longi- 
tudinal rows of polymorphic black spots recalling to mind T. ordinatus. 
From Puget Sound. 
WENONA (Nov. gen.). Head conical, rather small and continuous with the 
body. Vertical plate about as broad as it is long; between it and the rostral 
plate are two or three pairs of frontals. Occipitals and supraorbitals rather 
small and nearly of equal size. Eyes very small, no loral plate; one anterior 
orbital, large ; the post orbitals are not to be distinguished from the temporal 
scales. Body cylindrical, covered-with small lozenge-shaped and smooth scales. 
Abdominal shields narrow, one rowed under the tail behind the vent, as well as 
onthe abdomen. ‘Tail very short, slightly tapering towards the tip. 
This genus is related to Tortrix, and will probably include the T. Botte of 
Blainville. 
Wenona 1sapetua, B. and G. Vertical plates broader than long. ‘Two pairs 
of frontal ones. A small plate between the post-frontal pair and the vertical. 
Length about sixteen inches, of which about two belong to the tail. Of a uni- 
form deep isabel color, lighter on the belly. 
From Puget Sound. 
Wenona puumpra, B. andG. Vertical plate as broad as long. Three pairs 
of frontal plates} the anterior pair extending on the side of the snout in advance 
of the nostrils as in the preceding species. The second pair extends likewise 
down and occupies the place of the leral, which may sometimes appear;as an 
independent plate. Lower jaw much shorter than the upper one. <A double 
row of plates along the upper jaw; length about eighteen inches: The tail two 
anda half inches and slightly tapering. Shield under the tail narrower and 
more elongated than in the preceding species. Of a uniform bluish lead color 
above, whitish beneath. 
From Puget Sound. 
Canamania TENUIS, B. and G. General form slender; about eight inches in 
length from the tip of the snout to the end of the tail. Head somewhat detached 
from the body. ‘Tail short and conical, one inch and a quarter in length. Occi- 
pital plates elongated, elliptical in form ; vertical one subpentagonal. ‘Two pairs 
of frontals, an odd and elliptical small plate in advance of the vertical, between 
the posterior frontals. Eyes proportionally large. Scales smooth and subellip- 
tical in form. Color of a uniform dull brown, lighter beneath. 
From Puget Sound. 
