22. pnoLiDOBOLUs. 403 



22. PHOLIDOBOLUS. 



Pliolidobolus, Peters, Abh. Berl Ac. 1802, p. 195. 



Tongue moderately elongate, arrow-headed. Lateral teeth bi- 

 or tricuspid. Head with large regular shields ; nasals separated by 

 the frontonasal ; no procfrontals ; frontoparietals present ; nostril 

 pierced in the suture of a divided nasal*. Eyelids developed, lower 

 with a non-transparent disk. Ear exposed. Limbs well developed, 

 pentadactyle. Dorsal scales elongate hexagonal, striated, imbricate, 

 separated from the ventrals by small scales ; ventral plates largo, 

 smooth, quadrangular, forming regular longitudinal and transverse 

 series. A collar fold. Tail eyliiidrical. No femoral pores in 

 either sex. 



Ecuador. 



1. Pholidobolus montiiim. 



Ecpleopus (Pholidobolus) montium, Peters, I. c. p. lOG, pi. ii. fig. 3. 



In habit very similar to Lacerta vivijxira. Snout short, obtuse. 

 Frontonasal large, subquadrangular or trapezoid, a little broader 

 than long ; frontal narrowed posteriorly ; frontoparietals forming a 

 rather long suture ; pai'ietals 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 iivo 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 pra^anals, 

 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 tl:o upper lip to the fore 

 arm ; two more or less distinct parallel light lines along the Hanks ; 

 lower surfaces olive or greyish, black-spotted. 



* This shield is, however, undivided in one of our specimens ; and Peters also 

 giyps it as undivided. 



2d 2 



