The Inzards of Kansas 39 
ing rounded anteriorly, somewhat flattened posteriorly; 
tympanum exposed; two prominent gular folds; head 
plates large; dorsals finely granular; large ventrals in 
eight longitudinal rows; dorsal caudal scales plated and 
strongly keeled; Gadow (1906) stated that the number 
of femoral pores varies from fourteen to nineteen, and 
a limited number of counts made on Kansas specimens 
by the writer are within these figures; these pores with 
enlarged centers in males; small centers in females. 
Coloration extremely variable; ventral color purplish, 
Fig. 7. Distribution of O. ventralis in Kansas as indicated by the 
county reports. 
blue, greenish blue, bright green, yellowish, pure white, 
or brownish; sides dull bluish, whitish, yellowish, green- 
ish, slate or purple; sides always darker than below, 
and often one of the above colors is found on the sides 
while the abdomen is gray or whitish; back with six 
longitudinal light lines; young specimens often with a 
broad seventh stripe down the median part of the back, — 
which fades and gradually disappears as the animal = 
becomes older; dorsal ground color usually some shade : i 
