40 Trans. Acad. Sct. of St. Louis 
of brown, gray, green, or yellow; upper head scales 
olivaceous; lower labials white, or light blue; upper 
labials brown, yellowish, or greenish; angle of jaw 
colored more deeply than labials; tail brownish above, 
whitish beneath. The coloration of these lizards should 
always be studied on freshly collected material or living 
specimens, for their colors fade very rapidly in pre- 
servatives. 
Data upon 169 Kansas specimens are as follows: 
Length of body, 27-79 (61-70); length of tail, 45-164 
(121-135) ; total length, 72-238 (181-200) ; width of head, 
4.5-11 (8-9); length of tail as percentage of total length, 
59.5-72.1 (66.1-68) ; width of head as percentage of body 
length, 11.1-17.7 (12-14). 
This summary indicates a greater variation in the 
length of tail than in the length of body. Pratt (1923) 
gave the total length as 250 mm., and tail 175 mm. This 
figure for total length is the greatest yet found by the 
writer. 
In discussing the genus Cuemidophorus it is well to 
note that besides C. sexlineatus, the species, C. tessel- 
latus and C. gularis, have been reported from Kansas. 
The writer has examined over 200 specimens of race- 
runners from \Kansas, and has referred them all to 
C. sexlineatus. The report of C. gularis for Kansas was 
made earlier than that of C. tessellatus and will be con- 
sidered first. 
Hallowell (1856 a-b) reported one and seven speci- 
mens of C. gularis, respectively, from Kansas. They 
were presented to the Academy of Natural Sciences of 
Philadelphia by Dr. Hammond, U. 8S. A., who was sta- 
tioned at F't. Riley, Kansas. The recent trip of the Kan- 
sas University Biological Survey through that region 
(1926) has failed to reveal any of these specimens, and 
