Batrachians and Reptiles from Peru. 185 



This species, named in honour of my colleague Mr. Oldfield 

 Thomas, is allied to T. peruvianas, Wiegm., from which it is 

 well distinguished by the shorter hind limbs and the stronger 

 auricular fringe. 



Proctoporus ventrimaculatus. 



Body elongate, limbs weak. Fronto-nasal much longer 

 than broad, much larger than the frontal ; fronto-parietals 

 forming a long suture ; interparietal narrower and a little 

 shorter than the parietals, widening posteriorly ; three sub- 

 equal occipitals ; three supraoculars ; no loreal ; a series of 

 very small infraorbitals; temple with large irregular shields; 

 chin-shields, one anterior and three pairs ; gular scales sub- 

 quadrangular, in 9 transverse series between the chin-shields 

 and the collar ; 10 collar-shields. Dorsal scales elongate- 

 quadrangular, smooth, juxtaposed; 31 series between the 

 occiput and the base of the tail. Ventral plates quadrangular, 

 in 10 longitudinal and 22 transverse series. Two large 

 prasanal shields in the first row, four in the second. Limbs 

 with smooth shields. Three femoral pores on each side. 

 Tail thick, scaled like the body. Uniform brown above ; 

 white beneath, witli large black spots. 



millim. 



Head 9 



Width of head 5 



From end of snout to fore limb 12 



From end of snout to vent 34 



Fore limb 9 



Hind limb 10 



A single specimen from Cajamarca, 10,000 feet. 



Philodryas Simonsii. 



Eye three fifths length of snout. Rostral broader than 

 deep, just visible from above; internasals shorter than the 

 prsefrontals ; frontal once and two thirds as long as broad, 

 longer than its distance from the end of the snout, slightly 

 shorter than the parietals ; loreal longer than deep ; one prse- 

 ocular, not reaching the frontal ; two postoculars ; temporals 

 2 + 3; eight upper labials, fourth and fifth entering the eye; 

 four lower labials in contact with the anterior chin-shields, 

 which are nearly as long as the posterior. Scales smooth, 

 with single apical pits, in 19 rows. Ventrals rounded, 182 ; 

 anal divided; subcaudals 105. Greenish yellow above, with 

 three olive longitudinal stripes and a dark brown vertebral 



