94 MR. G. $. WEST ON THE FRESHWATER ALGÆ 
1904. | 1905. 
Species. tT | 77 ~ | ) 
July. Aug. Sept. Oct. | Nov. Dec. Jan. Feb. 
EO от Des mes 
Chlorophycez. | | | 
Closterium Leibleinii, Kiitz. .................. КИНИНИ | IT 
Staurastrum alternans, Breb................... a fae ee ss | TIT | | 
Hyalotheca mucosa, (Dillw.) Ehrenb. .......... ар | | 
| Pediastrum simpler, Meyen .................. |.. б... то... | IT 
ya duplex, Meyen .................. we fe dae ee fae]. | т 
» Boryanum, (Turp.) Menegh. ...... epe see атт | 
„ Tetras, (Ehrenb.) Ralfs ............ elle eflet! rr 
| > inlegrum,Nag. .................. рз отто... рат | | 
| Crucigenia tetracantha, эр. n. .................. | | rmi 
| Scenedesmus bijugatus, (Turp.) Kiitz. .......... с | r 
| » » forma arcuatus, (Lemm.) | .. |... |... | e | cc 
W. & G. S. West. | | | | 
" acutiformis, Schröder, var. brasiliensis, .. |... |. | r | 
(Bohlin) W. & С. S. West. | 
" quadricauda, (Turp.) ВгбЬ. ......., eril. | ror гіт 
> » var. mavimus, W. &| .. | es oP ford B 
G. S. West. | | | | 
Ankistrodesmus falcatus, (Corda) Ralfs, | | | 
var. spirilliformis, G. S. West. .. |.. 1.. | | mi 
» nitzschiordes, sp. п. ............ AMEND. | 
Tetraédron minimum, (A. Br.) Hansg. .......... rm | ! | | 
Cerasterias rhaphidioides, Reinsch. ............| ,. |... .. | rm | 
Richteriella botryoides, (Schmidle) Lemm., | 
forma quadriseta, (Lemm.) Chodat.| .. |... |... | mi 
Chodatella subsalsa, Lemm. .................. р... рт 
Dictyospherium pulchellum, Wood ............ ЕНЕ: 
Tetracoccus botryoides, West .................. №... |... | mag | 
Botryococcus Braunii, Kiitz. .................. .. [ec 
Gleocystis gigas, (Kütz.) Lagerh............... | r | 
| | 
Bacillariez. | | | 
Cyclotella operculata, Kütz. .............., epe р. | орт 
Synedra Acus, Kiitz. ........................ рее еее 
» » var, delicatissima, (W. Sm.) Grun.| cc | c | с cec | ecc | elec 
„ »  ?var.revaliensis, (Lemm.) ...... e ede mm re e 
»  &ctiastroides, Lemm................. cc c [е rr rr | rr 
Cocconeis Pediculus, Ehrenb. .................. IT r | | 
> Placentula, Ehrenb................... e | rT re 
Navicula Tanganyike, вр. п. .................. EC (rr 
» elliptica, Kiitz....................... pego тт | 
» Рирша,‚,Кишїш....................... (e aT |... тоот от 
» bahusiensis, Grun. .................. | | | | rrr | | 
| » radiosa, Kütz. ...................... c |e Toa 
»  rhynchocephala, Кий. .............. (s rfa r | 
» distincta, sp. n....................... тт | 
| p Gastrum, Ehrenb. .................. от ре с св r| 
| Schizostauron Crucieula, Grun. ................ [e |. тт г | | 
| Gyrosigma attenuatum, (Kütz.) Cleve ,,....,.... 1 (ar | or | 
| > nodiferum, (Grun.) nob. ............ rrr | | 
| Cocconema grossestriatum, (О. Müll.) nob., | || | 
| var. Tanganyike, var. n... .. |... | a. mir) | | 
| " eymbiforme, Ehrenb. .............. эз. | rore | 
| Amphora ovalis, Kiitz......................... ие 
