ON THE REPTILIA OF PERU. 



163 



and front sides of humerus, and front of cubitus ; other faces granular. Femur 

 and tibia granular above, the former behind also. Inferior tibial scuta keeled. 

 Caudal scuta keeled below, nearly and quite smooth above. 



Color of a young specimen bluish, with a median light band from the middle 

 of the back to the end of the nose, covering the muzzle and front as far as the 

 frontoparietal scuta. A light band from orbit to near femur and another from 

 tympanum to groin, the intervening space crossed by vertical black spots and bars. 

 Lower surfaces green immaculate. 



M. 



Total length 



. 





, 



. .110 



Length to vent . 



. 





. 



. .040 



" to axilla 



■ 





, 



. .019 



" to ear 



. 





, , 



. .010 



" to orbit . 



» 







. .004 



Width of head posteriorly . 



. 





* 



. .006 



Length of hind limb . 



. 





M 



. .029 



" of hind foot . 









. .015 



This species is nearer to the C. calcamtus than to the C. decodon, but differs 

 from it in the more numerous ventral scales, keeled preanals, less numerous femoral 

 pores, etc. From Moyabamba, Peru. 



10. Diokodon callisoelis, Cope, sp. nov. 



The inner cusp of each tooth smaller than the outer. Nostril in the internasal 

 plate close to the posterior and inferior suture. Scales of the belly large, trans- 

 verse, smooth, in eight rows ; those of the back commencing as granulations on 

 the interscapular region, and gradually increasing in size until they are similar in 

 size to the large ones which cover the tail in whorls. Like the latter they are 

 keeled, the keels forming continuous lines. There are thirteen series at the groin, 

 and eighteen one-third the length behind the axillae. Nuchal scales and those of 

 the sides of the neck and body granular. Posterior face of humerus, postero- 

 superior faces of cubitus, superior and posterior faces of femur, and superior face 

 of tibia granular ; other faces of limbs scutate. Femoral pores eighteen on each 

 side. Anal scuta in three longitudinal series of alternating rhombic plates. Mar- 

 gin of neck fold granular ; its middle with five transverse rows of unequal trans- 

 verse scales. 



Internasals and prefrontals in extensive contact ; the frontonasal hexagonal, 

 longer than broad. Frontal narrow behind, angulate in front, divided transversely 

 by a suture at the penultimate supraorbital scute. Frontoparietals very small, 



