402 TED, 
2. Ecpleopus affinis. 
Cercosaurus gaudichaudii (non D. § B.), Giinth, Proc. Zool. Soe. 
1859, p. 405. 
Ecpleopus (Aspidolemus) affinis, Peters, 1. c. p. 199, pl. iii. fig. 1 
Snout short, obtuse; body rather elongate. Two nasals, nostril 
between; a loreal; prefrontals usually forming a short suture ; 
frontal broad; interparietal a little larger than the latter and than 
the parietals; three small occipitals, median smallest; three supra- 
oculars ; anterior supraciliary large, not reaching the frontonasal ; 
a row of small infraorbitals ; temples scaly ; seven or eight upper 
labials, fourth largest, under the eye; six lower labials; chin- 
shiclds, one anterior and four pairs, the two first pairs forming 
a suture, the others widely separated by the rather larger 
anterior gulars; a short double longitudinal row of transversely 
enlarged gulars in front of the collar; latter composed of six to 
eight scales. Dorsal scales longer than broad, hexagonal, feebly 
keeled*, separated from the ventrals by very small irregular scales; 
thirty-nine to forty-one scales round the middle of the body, ventrals 
included ; forty-six to forty-eight scales from occiput to sacrum 
inclusively. Ventral plates quadrangular, smooth, in eight or ten 
longitudinal and twenty-seven or twenty-eight transverse rows. 
Preeanals six, two pairs larger; sometimes a small additional plate 
wedged in between the posterior pair. Limbs with large smooth 
shields; upper surface of tibia with small keeled scales. Tail long, 
tapering to a fine point, covered with scales similar to those of the 
body, the upper and lateral keeled, the lower smooth. Olive-brown 
above; sides closely spotted with black; a yellow, black-edged line 
on each side, along the canthus rostralis and supraciliaries, becoming 
indistinct on the body; a series of small black spots along the 
middle of the body, more or less confluent into a vertebral line; 
lower surfaces greenish white, spotted with blackish. 
millim. millim. 
Total Tenge bh iscsi cin des vs ee ed ae aks 162 193 
Gad cose eyes ensaa lo acu ashe ea 13 14 
Width of head... ... eee ee eee 8 8 
From end of snout to fore limb ...... 20 23 
From end of snout to vent .......... 52 65 
Hore Ta esas scans asc Whe hae OS a 18 19 
Hind lamb) > sssnxe skew eae eee eae 27 28 
al” sera exe 2 egw ies ew shee OS ES 110 128 
Andes of Ecuador. 
a,b,e SQ. W. Ecuador. Mr. Fraser [ [oy 
d. Q. Intac. Mr. Buckley [C.]. 
* The scales are perfectly smooth when the epidermis is removed, and such 
is probably the case with Peters’s type specimen. 
