REPTILES FROM BOLIVIA 129 



10. Neusticurus ecpleopus, Cope (7). 



11. Pantodactyliùs schreibersii, Wiegm. (1). 



12. Cophias dorbignyi, D. & B. (5, 7). 



13. Mabuia agilis, Raddi (2, 7). 



Opliidia. 



14. Typhlops reticulatus, L. (5). 



15. Glauconia albifrons, Wagl. (7). 



16. Epicrates cene/iris, L. (3, 4, o). 



17. Corallus hortulanus, L. (5). 



18. Corallus caninus, L. (3, o, 7). 



19. Drymobius boddaertii, Sentz. (o). 



20. Drymobius dendrophis, Schleg. (7). 



21. Spiloles pullatus, L. (5). 



22. Coluber dichrous, Ptrs. (5). 



23. Coluber corais, L. (4). 



24. Herpetodryas carinatus, L. (1, 4,). 

 2o. Herpetodryas fuscus, L. (5, 7). 



26. Liophis poeciloyyrus, Wied. (2, 4). 



27. Liophis Guentheri, Peracca (4). 



28. Liophis typhlus, L. (4). 



29. Liophis regime, L. (7). 



30. Atractus latifrons, Gthr. (2). 



31. Atractus balzani, sp. n. — Snout obtusely pointed. Rostral 

 small, a little broader than deep, just visible from above ; inter- 

 nasals very small ; praefrontals slightly longer than broad ; 

 frontal as long as broad, as long as its distance from the end 

 of the snout, much shorter than the parietals ; loreal twice and 

 a half as long as deep ; one postocular ; temporals 1 •■+- 2 ; six 

 upper labials, third and fourth entering the eye ; three lower 

 labials in contact with the single pair of chin-shields, which are 

 rather elongate, moderately broad, and separated from the sym- 

 physial. Scales in 17 rows. Ventrals lo9 ; anal entire; sub- 

 caudals 32. Dark brown above, the scales on the sides lighter 

 in the centre ; yellowish beneath, finely speckled with brown , 



Ann. del Mus. Civ. di -St. Nat. .Serie -.V, Vol. XIX (15 Luglio lS9t<; y 



