PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 153 
very faintly ; second row faintly carinated. Carination strongly marked 
on three dorsal rows of scales, particularly near the tail. One anteorbi- 
tal; three postorbitals. A dorsal line extends to the tip of the tail, and 
with a glass indications of lateral lines may be seen on the second and 
one-half of the third rows of lateral scales. Theseare so faintly marked 
as only to be noticed by careful scrutiny. Color blue-black above, no 
spots, belly greenish-olive, not black-spotted. Resembles the 2. couchi, 
described by Kennicott in Pacific Railroad Survey Reports, Vol. X, p. 
10, but differs in the appearance of the head. The general coloration is 
similar to dark specimens of L. atrata. ; 
The subspecies is dedicated to my old and dear friend H. W. Henshaw, 
in remembrance of pleasant collecting days in the Rocky Mountains. 
Length of specimen 1 foot 94 inches. 
No. Locality. Date. | Collector. SSA: 
10712 | Fort Walla Walla, Wash -..--. | June, 1881 | Capt. C. Bendire, U.S.A....-..---- 4 Type. 
BASCANIUM FLAGELLIFORME BICINCTUM, subspecies nov. 
In a collection of reptiles from Old Fort Cobb, Tex., made by Dr. E. 
Palmer, is a serpent which resembles very nearly B. flag. testaceum, but 
differs in some particulars. The above name is provisionally adopted. 
Seales of head normal, with exception of vertical, which is slightly 
contracted at middle third. Center of the eye a little behind junction of 
fourth and fifth upper labials. Seventh upper labial longest and broad- 
est. The most marked difference from the species named is in the colora- 
tion and markings. General color above rusty brown, anterior margin 
of scales, if skin is stretched, marked with bluish-black. Traces of two 
yellowish lines on both sides of body at last row of lateral scales. Ab- 
dominal scutelle on upper third of body black spotted, with double 
Series on each scale. These markings become obsolete near the tail. 
The chin yellow, ante and post orbitals same color. Upon the head at 
the posterior margin of superciliaries and the vertical is a faint trace of 
a blackish transverse line. The base of the occipitals is similarly col- 
ored, and directly behind is a transverse black band four scales wide 
passing around the back of the neck, terminating just behind the pos- 
terior borders of the last upper labials. Five scales posterior to this 
band is another, two scales in width descending as low as the former. 
The interval between the two bands is lighter than the rest of the body 
color. At first sight the band reminds one of a characteristic of the 
ringed-neck Diadophis. I have examined many specimens of Basca- 
nium and failed to find any traces of the nuchal ring found in the 
above-named species. 
The specimen is half grown, and measures 1 foot 5.1 inches in length. 
No. Locality. Date. | Collector. Ale. 
| 
| 
11814 | Old Fort Cobb, Texas .-....-.-. se TS8O\ DY Rie abnenes sacs eat ouslieseuce Type. 
