22. PHOLIDOBOLUS. 403 
22. PHOLIDOBOLUS. 
Pholidobolus, Peters, Abdh, Berl. Ac, 1862, p. 195. 
Tongue moderately elongate, arrow-headed. Lateral teeth bi- 
or tricuspid. Head with large regular shields ; nasals separated by 
the frontonasal; no prefrontals ; frontoparietals present ; nostril 
pierced in the suture of a divided nasal*. Eyelids developed, lower 
with a non-transparent disk. Earexposed. Limbs well developed, 
pentadactyle. Dorsal scales elongate hexagonal, striated, imbricate, 
separated from the ventrals by small scales ; ventral plates large, 
smooth, quadrangular, forming regular longitudinal and transverse 
series. A collar fold. Tail cylindrical. No femoral pores in 
either sex. 
Ecuador. 
1. Pholidobolus montium. 
Ecpleopus (Pholidobolus) montium, Peters, J. c. p. 196, pl. ii. fig. 3. 
In habit very similar to Lacerta vivipara. Snout short, obtuse. 
Frontonasal large, subquadrangular or trapezoid, a little broader 
than long; frontal narrowed posteriorly ; frontoparietals forming a 
rather long suture: parietals short; interparietal as long as, but 
narrower than, latter; three occipitals, median smallest; two 
supraoculars ; a loreal and a frenoorbital ; infraorbitals very small ; 
temples shielded ; seven upper and five or six lower labials : chin- 
shields, one anterior and four pairs, the two first pairs forming a 
suture; gular scales irregular between the rami of the mandible, and 
a double longitudinal row of large transverse ones to the collar; 
collar-shields six to eight. Dorsal scales rather large, regularly 
hexagonal, each with three feeble keels ; lateral scales small, more 
irregular ; about thirty-five scales round the middle of the body, 
including ventrals, and thirty-three to forty from occiput to sacrum 
inclusively. Ventral plates large, square, in eight longitudinal and 
twenty-two to twenty-six transverse series. A pair of large preanals, 
bordered anteriorly by smaller shields. Limbs with smooth or feebly 
striated shields ; lower surface of arm, hinder side of thighs, and 
inner side of tibia granulate. Upper caudal scales elongate hexa- 
gonal, keeled; lower larger, subquadrangular, smooth ; all forming 
regular annuli. Brown above, sides blackish ; a black vertebral 
line; a light, black-edged streak from the tip of the snout along the 
canthus rostralis and supraciliaries to the side of the back, where it 
often gradually disappears; another along the upper lip to the fore 
arm; two more or less distinct parallel light lines along the flanks ; 
lower surfaces olive or greyish, black-spotted. 
* This shield is, however, undivided in one of our specimens ; and Peters also 
gives it as undivided. 
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