332 PROCEEDINGS OF THE ACADEMY OF 



E. Hammondii Kennicott. 



Spec. char. Twenty-one rows of scales. Form rather slender ; head long, 

 narrow posteriorly ; snout elongate and narrow, but rather obtuse. Postorbi- 

 tals three, the upper much the largest. Eight upper labials, sixth largest ; 

 its postero-inferior angle much elongated. No dorsal stripe ; lateral stripe 

 olive yellow on the second and third rows. Back uniform dark olive brown 

 or blackish, without distinct spots. Abdomen whitish olive, lighter anteri- 

 orly, and a dark line aloug the middle posteriorly. 



Descr. Form rather slender, the tail about one-fourth the total length. 

 Head very narrow and much elongated ; the snout very narrow, but rather 

 obtuse. The back above the third row of scales is very dark uniform olive 

 brown without spot or band, except a light medial line extending about an 

 inch back of the head. Lateral stripe light olivaceous yellow ; first row of 

 scales a little darker, and similar to the abdomen, being of a very dull whitish 

 olive. Bases of the scales of the first row black ; bases of abdominal scutes 

 the same, the color broader toward their extremities, and generally concealed 

 by the incumbent scute. A narrow slate-colored line along the middle of the 

 abdomen posteriorly. Head above dark olive ; superior labials very light 

 olive yellow, margined with black posteriorly, excepting the eighth. This is 

 black anteriorly, its posterior end being occupied by a yellowish patch which 

 is confluent with the yellow of the neck. Lower postorbitals yellow. Two 

 small yellow occipital dots, and a small yellow dot on each side of the poste- 

 rior part of the vertical plate ; these sometimes absent. 



Youus? specimens, and older ones, after the removal of the epidermis, ex- 

 hibit faint indications of a very narrow dorsal stripe upon a single row of 

 scales, but in one there is no trace of this, even upon the neck, where it is 

 usually visible These specimens also exhibit traces of two series of large 

 alternating spots, which present somewhat the appearance of a zigzag line. In 

 a young specimen there is a distinct series of spots on the first dorsal row, 

 each spot covering one scale, and separated from those adjacent by two scales. 

 Only one specimen is without the dark line upon the abdomen posteriorly. 

 There are no irregular black blotches upon the abdomen as in E. angusti- 

 r os tr is . 



San Diego. Dr. J. F. Hammond. 



Fort Tejon. J. Xantus. 



This species is strongly marked, and will hardly be confounded with any 

 at present known. It resembles most nearly E. ang u s tir ostri s , under 

 the head of which species the comparative differences are given in full. Two 

 young specimens labelled by Dr. Hallowell " Tropidonotus ordinatus," belong 

 here. Eutsenia ordinata has a stouter body and head, and more pointed 

 snout. There are nineteen dorsal rows, and a very different system of colora- 

 tion. 



E. angustirostris Kennicott. 



Spec. char. Body moderately stout ; tail less than one-fourth the total 

 length, and very small. Head exceedingly elongated and narrow, more so 

 than any other of the genus ; snout very long, narrow and pointed. Crown 

 plane above ; eye large. Upper labials eight, sixth largest, seventh scarcely 

 smaller. Dorsal rows twenty-one ; outer row large, very faintly carinated, 

 the second smaller but broader than the third ; the next rather large and 

 elongated, and strongly carinated. Dorsal stripe narrow, very indistinct. An 

 indistinct, dull whitish lateral stripe on the second and third rows. Above 

 the lateral stripes dark olive brown or black. Abdomen dark ashy olive or 

 black. 



Descr. The back above the third row of scales is dark olive brown without 

 spots, but with each scale bordered with darker. The scales of the second 

 and third rows are greyish olive, with distinct yellow borders. The first row 

 and abdomen are ashy olive, with irregular heavy black blotches upon the 



[Aug. 



