28. COLUBER 659 
c’.—Gastrosteges more than 185; urosteges not fewer 
than 93. 
d.—Not from Clarion Island. 
Coluber flagellum piceus.—p. 664, 
d’.—Clarion Island only. 
Coluber anthonyi.—p. 673. 
b’.—Distinct longitudinal lines present on sides of body, 
no dark cross-bars on back of neck. 
cc.—Two lateral light stripes anteriorly, not continued to 
tail; lateral scales of second, third, and often first, 
rows with central brown lines; gastrosteges 196 to 
207, urosteges 128 to 138. 
C. semilineatus.—p. 675. 
cc.—A single light yellow or white line along scales of 
third and fourth lateral rows; lateral scales without 
central brown lines. 
dd.—Lateral light line not broken anteriorly. 
e.—Lateral light line yellowish, of uniform width 
from neck to tail; dark markings present on lips, 
chin and throat. 
C. lateralis.—p. 678. 
e.—Lateral light line pure white, with slight en- 
largements at intervals of from four to seven 
scales; no dark markings on lips, chin and 
throat. 
C. barbouri.—p. 681. 
dd’—Lateral light line yellowish, broken up anteri- 
orly, absent or indefinite posteriorly. 
C. aurigulus-—p. 683. 
a'.—Scales in fifteen rows. 
C. t. taniatus.—685. 
