1870.] Proceedings of the Asiatic Society. 257 



few small flat tubercles at the sides and loins, tail depressed, 

 ringed with three elongate scale-like tubercles at the side of the 

 hinder part of each ring, sub-caudal shields large. Femoral pores 

 about twelve on each side with a considerable interval between 

 them ; all the fingers and toes with claws. Colour, grey above 

 marbled with dusky, whitish below. Length of body, 1 -85 inch, 

 of tail (renewed in part) 1*5". 



16. Calotos versicolor, (Daud.). 



17. Sitana Pondiceriana, Ouv. 



18. S. Beccanensis, Jerd. Appears doubtfully distinct from the 

 last. 



19. Cliarasia dorsalis, Gray. 



20. Typhlops braminus, (Daud.) var. pammeces. 



21. Tropidonotus quincunciatus, Schleg. 

 . 22. Rtyas mucusus, (L.). 



23. Zamenis ? br achy urns, Giinther. 



24. Bendrophis picta, (Gm.). 



25. Passerita mycterizans, (L.). 



26. Lycodon aulicus, (L.). 



27. Naja tripudians, Merr. 



28. Bungarus cceruleus, (Schneid.). 



29. Baboia Russellii, (Shaw.). 



30. Rana cyanophlyctis, Schneid. 



31. R. gracilis, Wieg. 



32. Pyxicephalus breviceps, (Schneid.). 



33. Callula pulchra, Gray. 



34. Polypedates muculatus, (Gray.). 



5. A fourth List of Bengal Algae * determined by Dr.. G. v. Martens, 



communicated by S. Kttrz, Esq. 



(Continued from Proceedings for January, 1870.) 



2662. Bictyonemafuscescens, Martens. — Filis heteromorphis, prima- 



riis ad 3-^. lin. cum vagina crassis, obscure fuscis, articulis distinc- 



tis plerumque binatis, diametro sequalibus, vaginis rugosis, crassis, 



coloratis ; fills secundariis ^^ lin. tantum crassis, pallidioribus, 



* In this List the species which have been already published as occurring in 

 Bengal, are omitted. 



