OF THE THIRD TANGANYIKA EXPEDITION. 
Species. 
| Amphora coffeiformis, (Ag.) Kütz. ......... 
| Epithemia turgida, (Ehrenb.) Kütz. ............ 
| Rhopalodia gibba, (Kütz.) O. Müll., var. ventricosa, 
| (Grun.) О. Müll. 
| „ hirudiniformis, O. Müll. ............ 
| " gracilis, O. МШП................... 
| Nitzschia Tryblionella, Hantzsch, var. littoralis, 
| (Grun.) Van Heurck. 
dissipata, (Kütz.) Grun., var. media, 
Hantzsch. 
tubicola, Grun. .................... 
| Palea, (Kütz.) W.Sm............... 
» nyassensis, О. Müll. ................ 
Surirella plana, sp. n. n.o leen 
| ,  eonstricta, Ehrenb., var. africana, О. Müll. 
»  obtusiuscula, sp. п. .................. 
» Tanganyike, sp. D. .......>.......... 
» striatula, Татр. .................... 
Cymatopleura Solea, (Kütz.) W. бш. .......... 
| 
| Myxophycez. 
| Nostoc piscinale, Kiitz. ...................... 
| „ Carmeum, Ag. ........................ 
| Anabena Flos-aque, (Lyngb.) Bréb., forma .. 
| > » var. circularis, var. п....... 
| » sp.? (Ша rigidissima) .............. 
| » Tanganyike, Sp. n. ................ 
| Plectonema Wolle, Farlow .................. 
| Lyngbya perelegans, Lemm. .................. 
| ,  lmnetica, Lemm. .................. 
Phormidium tenue, (Ag.) Gomont ............ 
» angustissimum, W. & G. S. West. .. 
| Oscillatoria Princeps, Vauch................... 
| » Cortiana, Menegh. ................ 
| » Tanganyike, sp. n. ............... . 
" tenuis, Ag. ...................... 
| Spirulina lazissima, Sp. D. .................... 
| Gleotrichia natans, (Hedwig) Rabenh. ........ 
| Merismopedia elegans, А. Вг. _................ 
| » » var. remota, Var. п. ...... 
» eruginosa, Breb................. 
glauca, (Ehrenb.) Nag. .......... 
| » punctata, Meyen _.............. 
| Gomphospheria aponina, Kutz................. 
Microcystis elabens, (Bréb.) Ки. ............ 
Chroococcus turgidus, (Kütz.) Nag, ............ 
| ” 
Peridiniez. 
Glenodinium Pulvisculus, (Ehrenb.) Stein ...... 
| Peridinium africanum, Lemm., sp. п. .......... 
» berolinense, Lemm., var. apiculatum, 
Lemm., var. n. 
| Peridiniopsis Cunningtonii, Lemm., sp. п. ...... 
1904. l 
| 
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