176 [October, 



ever assume still more this character in E. muliicarinata, the scales of which 

 are considerably larger than the species here described. 

 From California. 



Elgaria grandis, 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 tqe origin of the tail. Tail itself 

 one and a half times as large as the body, conidal and tapering. Twelve rows 

 of abdominal scales, subquandrangular 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. 



Tropidonotus ordinoides, B. and G. Is distinguished from T. inprnaliSf 

 {^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 T. 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 yellowish or whitish yellow, between which and the dorsal line, are two lon- 

 gitudinal 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 plaie ; 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 

 on the abdomen. Tail very short, slightly tapering towards the tip. 



This genus is related to Tortrix, and will probably include the T. Boitce of 

 Blainville. 



Wenona ISABELLA, 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 Fuget Sound. 



Wenona plumbea, B. and G. Vertical plate broader than 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 loral, 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 

 and a 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. 



Calamaria 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 brown, lighter beneath. 



From Puget Sound. 



