•^- 19 r^ 



a,cillariexi 



Syiiedra Hemiedyana Greg 



., (Thalassionema) Frauenfeldii Griin. 



var. doljensis Pant 



Synedra (Thalassionema) nitzschiodes Grun. 



var. acuminata Grun 



Synedra (Thalassionema) nitzschiodes var. ob- 



tusa Grun 



Terpsinoe americana (Bail.) Kalfs 



„ „ forma: trigona Pant. Grun. 



., intermedia Grun 



Triceratium (nankoorense Grun. var. ?) acut- 



angulum Grun. 



Triceratium antiquum nov. spec 



„ arcticum Bright 



,. ., „ forma : pentagoua 



„ balearicum Clev. Grun. . . . 



„ biquadratum Janiscli 



., Brunii nov. spec 



,1 Castracanei nov. spec 



„ condecorura (Ehrbg.) Bright. 



„ „ var, neogradensis Grun. 



„ decorum Grev 



„ Favus Ehrbg 



grande Bright, forma: pentagona 



Pant. 



Triceratium (acutangulum Grev. var.?) Gro- 

 vei nov. spec 



Triceratium (antillarum Clev. var.?) laetum 

 nov. spec 



Tricei-atiura latum Grev 



lucidum nov. spec 



madagascai-ense Grun 



(Tripos Clev. var. ?) microtis Grun. 



nov. spec. 



Triceratium (Tripos Clev. var. ?) microtis forma: 



quadriocellata Pant 



Triceratium Molleri nov. spec 



„ (mui-icatum Bright, var. ?) fossiiis 



Grun 



Triceratium (muricatum Bright, var.?) nudum 



! nov. spec 



Triceratium obscurum Grev. ... . . 



., Pantocsekii A. Schm 



forma: convexa Pant. 



