ON THE REPTILIA OF PERU. 



171 



limbs are extended, the wrist reaches nearly to the end of the muzzle, and the 

 longer toe to the posterior border of the orbits. 



Color dark yellowish-brown above, light brown below. Nine dark cross bands 

 on back between scapulae and rump. A black spot in front of the scapula, with 

 a pale shade above it. Head plates brown, with blue - inflections. Tail annulate 



with brown. 



Total length 

 Length to vent • 



" to axilla 



" to orbit . 

 Width of head behind 

 Length pf hind limb . 



" of hind foot . 



M. 

 .275 



.087 



.037 



.008 



.019 



.067 



.028 



This species differs materially from the last in its larger head-scuta, especially 

 the supraorbitals, and smooth abdominal scales. 



26. Doryphorus flaviceps, Guichenot in Castlenau's Voyage in Ara<?r. Meridionale. 



27. Hypsibates agamoides, Wiegmann, Dum. Bibr. 

 From Moyabamba, Peru. 



28. Microlophus heterolepis, Wiegmann ; Tropidurus heterolepis, Wiegm. Nova Acta Caes. 



Leopold. Nat. Cur., xvii. p. 223, tab. 16. 



Scales granular, a series forming a low crest from the nape to the end of the 

 tail. No femoral nor anal pores. Tail compressed. Head with a broad inter- 

 parietal shield, and large supraorbitals. Ear distinct ; nostril above canthus 

 rostralis. Two prehumeral folds, which nearly meet in the middle. 



Abdominal scales much larger than the others, smooth, in transverse rows ; 

 those of the tail of equal size, half keeled. Nine smooth scales in a line aci-oss 

 the middle of the muzzle. Nostrils subvertical in one plate, which is separated 

 from the rostral by one scale, from its mate and from the labials by two scales. 

 Superciliary rows in contact ; interparietal broader than long. Five transverse 

 smooth supraorbital scuta bordered within by one, and without by iwo rows of 

 small scales, with a few of intermediate size between them and the latter. One 

 very long suborbital ; eyelids fringed with narrowly conic scales. Four loreal 

 rows. Labial scales 7-7 to the coronoid elevation of the lower jaw, very narrow; 

 the rostral broad, angulate above. Three large smooth infralabials separated from 

 the inferior labials by small scales. Some weak dermal folds on the side of the 



