1871. ] Proceedings of the Asiatic Society. 171 
filaments, as mentioned sub No, 2762.—Calcutta, Botanic gardens, 
floating on stagnant waters, 
2785. Gleotila concatenata, Kg.—Caleutta Botanic gardens, in 
tanks, floating ; August, 1870. 
2785 b. Glaotila protogenita, Kg.—Rajmahal, floating in tanks ; 
October, 1870. 
2792. Microcystis olivacea, Kg.—Muhudeepore, ruins of Gour 
in stagnant pools, with Diatomacee, Closterium, Euglene, ete. 
2793. Rhizoclonium Kochianum, Kg., with single threads of 
Lyngbya majuscula, Harv., Staurospermum ceerulescens, Kg., and 
other Alge.—Rajmahal, floating in tanks near the station; Octo- 
ber, 1870. 
2798 and 2803. Chetophora radians, Kg.—On submerged bricks 
and dead branches in tanks at Rajmahal station ; Oct. 1870. 
2800. Palmella bullosa, Kg., occurs together with Chetophora 
radians, Kg.—Rajmahal station, in tanks, on er eee brick - 
stones; Oct. 1870. 
2801. Leptothrix muralis, Kg—Rajmahal (station), damp walls 
of the traveller’s bungalow ; Oct. 1870. 
2802. Hypheothrix subundulata, Martens, n. sp. 
Strato compacto, sordide olivaceo, filis 1/400 lin. crassis, pallide 
aerugineis, obsolete articulatis, granulatis ; vaginis pellucidis, 1/350 
lin. erassis, leviter undulatis—Rajmahal, in tanks, on Paludina 
shells ; Oct. 1870. 
2804. Spirogyra subequa B., fasciis spiralibus condensatis.— 
Rajmahal hills, Sahibgunj waterfalls, on rocks ; Oct. 1870. 
2811. Spirogyra decimina, Lk., with Gomphonema dichotomum, 
Kg.—Rajmahal hills, waterfall at the base of the hills near Sahib- 
gunj, on trap rocks ; Oct. 1870. 
2812. Protococcus vulgaris, Kg—On the ruins of one of the 
ancient gate-ways of Gour, Rajmahal ; Oct. 1870. 
2813. Scytonema erugineo-cinereum, Kg.—On walls of buildings, 
very common in and around Calcutta. 
2815. Seytonema ecinereum, Men.—On a ruined bridge over 
the Ganges, S. of Rajmahal, on damp brickstones ; Oct. 1870. 
2817. Cylindrospermum spirale, Kg.—Calcutta, Botanic gardens, 
floating in tanks. 
