768 13. COLUBRIDE 
The back and sides are blackish brown; the former, with 
a rather indistinct longitudinal line composed of cinnamon 
colored spots upon the centers of the scales of the median 
series, and upon the inner edges of those forming the first 
row on each side of this series; the latter, with a few scales 
of the first and second rows dotted, centrally, with cinna- 
mon or yellowish white. A band of cinnamon crosses 
the nape. The gulars, genials and inferior labials, are 
blackish brown with paler centers. The plates on 
the top and sides of the head are brownish black, with faintly 
indicated dots of raw umber upon the loreal, pre- and post- 
ocular plates, and near the posterior edges of the supra- 
oculars and parietals. There are six cinnamon colored 
blotches on the upper surface of the tail. The gastrosteges 
and urosteges are entirely brownish black, with the excep- 
tion of the first 10 gastrosteges, which show faint cinnamon 
colored dots. 
A small specimen (290 mm.) has, on the sides, rather 
numerous cinnamon colored blotches or enlargements of a 
similarly colored longitudinal line. This line is of about 
the width of one row of scales, and occupies the tips of the 
gastrosteges and the lower half of each scale of the first 
series. 
Tenpthitopan sss ees een 840 
Teenie thio tat eae ee ee =125 
Distribution.—The three known specimens were secured 
at San José del Cabo, Lower California, Mexico. 
