458 L. G. ANDERSSON, LIST OF REPTILES AND BATRACHIANS. 

 Philodryas arenarius, sp. nov. 



Maxillary teeth 12. 10 anterior, equal, solid, separated by 

 a very distinct interspace from two posterior, larger, and closely 

 set. The 1 ätter are provided with a very shallow groove. Man- 

 dibular teeth 13, gradually decreasing in size. Head slightly 

 distinct from neck. Eye moderate, half the length of the snout, 

 with round pupil. A fairly distinct canthus rostralis. Rostral 

 as deep as broad, well visible from above. Internasals a little 

 broader than long, shorter than the pra3fontals. Frontal long, nearly 

 twice as long as broad, longer than its distance from the tip of 

 the snout and. longer than the parietals. Two nasals. Loreal 

 longer than deep. One prseocular, not reaching the frontal. Two 

 postoculars. 8 upper labials, 4 th and. 5 th entering the eye. Tem- 

 poral« are 2 + 2 or 2 + 3. 13 lo wer labials, 4 — 5 in contact 

 with the anterior chin-shields, which are shorter than the poste- 

 rior. The latter are separated from each other by small scales. 



The body is elongate, cylindrical. Scales smooth, with single 

 apical pits, in 23 rows. Ventral shields 207; anal entire; cau- 

 dal shields in two röws, 113. Tail long, more than 1 /å of the 

 total length, the end of the tail pointed. 



