230 MR. A. W. E. O'SHAUGHNESSY ON [Feb. 1, 



sides small quadrate scales, in two rows to each of the dorsal rows. 

 Ventral plates large, in six longitudinal series, the middle ones 

 squarish, the outer rounded. Praeanal scutes four or six, arranged 

 as described above. Four series of square, smooth, inferior caudal 

 plates; those above elongated, keeled, without points. Tail gene- 

 rally with a lateral groove. Femoral pores six to nine. 



Above light brown; head variegated with darker. A central dark 

 longitudinal stripe and a lateral one on each side, beneath which a 

 light vitta extends from the temporal region the whole length of the 

 side, again bordered inferiorly with black. Sides with a series of 

 eight or nine large ocelli black with white centres ; another, pure 

 white, lower lateral stripe from the labials and beneath the eye. 

 Entire ventral surface yellowish ; each ventral, anal, and lower 

 caudal scute with a central black dot. Tail above and below light 

 brown or yellowish, the dorsal tints fading and the stripes ceasing 

 over the rump. 



millim. 



Total length J02 



Distance of tip of snout from ear-opening. . 12 

 „ „ „ fore limb . . 18 



,, „ „ vent 43 



Length of fore limb 15 



„ fourth finger on fore limb 4 



hind Umb 20 



third hind toe 4^ 



„ fourth hind toe . , 5| 



Beside the other differences noted above, Prof. Peters's type spe- 

 cimen showed only two anterior lateral ocelli. Its locality is given 

 as the mountain region of Santa Fe de Bogota. Of the four col- 

 lected by Mr. Buckley iu Ecuador, one is from Pallatanga, and 

 three are from Canelos. 



4. Cercosatjra (PantodactyIiUs) RETICULATA, sp. u. (Plate 

 XXII. fig. I). 



Iiiternasal broad, fronto-nasals pentagonal, with one side in con- 

 tact ; frontal short ; fronto-parietals separate ; interparietal long and 

 straight ; parietals also witli straight inner edge, broader than the 

 inter] larietal, and rounded externally; these three plates evenly 

 truncate on the posterior line of the head, and followed by two trans- 

 verse rows of small plates, preceding the regular scales of the nape, 

 there being no true occipital shields. Head-shields smooth, with- 

 out any ridges. Supraorbitals three. One frenal. Supralabials 

 seven, none of them elongate ; infralabials six. Temporal scales ir- 

 regular, polygonal, rather large. A single mental shield behind the 

 symphysial, and four pairs of postmentals, the two first in contact, 

 the others separated by narrow intervening scales. A double series of 

 large gular shields ending in the very indistinct collar before the chest. 

 Scales of the entire upper surface and sides of the body very narrow, 

 elongate, and keeled, of the same type as those of C, schreibersii^ 



>i 



