List of Plates. 



Plate I. 

 (All figures in natural size except Fig. 7, which is enlarged [ x 2].) 



Fig. 1 . Ungalia hrasiliensis sp. iiov. 



-4. 



Pseudohoodon cdbojyunctatus sp. nov. 

 5 — 7. Arrhyton Quenselii sp. nov. 

 8. Thrasops splendenn sp. nov. 



Plate II. 

 (All figures in natural size.) 



Fig. 9 — 11. Tropidodipsas longicandata sp. nov. 

 » 12 — 14. Ijeptophis flagellum sp. nov. 

 » 15. Geodipsas mapianjensis sp. nov. 



