282 3. IGUANID^ 



pointed. Femoral pores varying in number from 12 to 20 

 on each thigh. Thirteen to 1 7 dorsal scales equaling length 

 of shielded part of head. Number of scales in a row from 

 interparietal plate to a line connecting posterior surfaces of 

 thighs varying from 52 to 685 average in 40 specimens, 

 60.75. Males with enlarged postanal plates. 



The general color above is brown, olive, bluish or green- 

 ish gray, with one dorsal and two lateral series of closely- 

 set brown spots or undulate blotches on each side. These 

 blotches have dark posterior and lateral edges, are usually 

 larger and more distinct in females and young than in adult 

 males, are often more or less confluent, may form longi- 

 tudinal bands separated by narrower bands of the lighter 

 ground color. The head has no definite cross-lines, but the 

 upper lateral band or series of spots is continued along the 

 temple. The tail is very differently marked in different 

 specimens, but usually shows traces of light and dark rings. 

 Males have a large blue blotch, sometimes bordered inter- 

 nally with black, on each side of the belly, and the throat 

 usually is more or less washed with blue with a tendency to 

 the formation of narrow oblique bands. Females often lack 

 the blue of the throat and sides of belly, but this color is 

 sometimes present, and is not infrequently bordered above 

 by a band of bright reddish orange along each side of the 

 bodv. 



