P. T. Cleve: The Diatoms of Finland. 41 



Lim. 23, 24, Lt. 34, Sinb. Ob. 83. 

 A. Follis Ehb. — Donk. B. D. VI, 15. 

 Foss. Sa. 88, 89. 



Brebissoiiia Gran. 



B. Boeckii (W. Sm.) — W. Sm. B. D. XXIV, 223. 

 Mb. Ab. 100, Sinf. Nyl. (Dannf.). 



Ampliipleura Kiitz. 



A. pellucida (Ehb.) Kiitz. - V. H. XVII, 14, 15. 

 Kus. 72, Kon. 41, Sb. 4, Sinb. Ob. 83. 



Berkeleya Grev. 



B. Dillwynii (Ag.) Grun. — V. H. XVI, 15. 

 Sinb. Ob. 83. 



B. fennica Dannf. 

 Sinf. Nyl. (Dannf.). 



Frustulia (Ag.) Rabh. 



(Vanheurckia Breb. 1869). 



F. vulgaris Thw. — V. H. XVII, 6. 

 Ab. 3G, 49, Sb. 2, 3, G, 7, 8, 12, IS. 

 F. rhomboides Breb. — V. H. XVII, 1. 

 Ab. 36, Sb. 70, Lt. 30, 32, 33, 34, Lim. 20, 21, 25, 27. 

 Foss. Sa. 89, Tb. 90. 

 Var. crassinervia Breb. — V. H. XVII, 4. 

 Ab. 36, Kus. 72, Sb. 2, 4, 17, Ltm. 20, 21, 22, 23, Lt. 29 

 30, 34. 



Var. amphipleuroides Gran. — A. D. Ill, 59. 

 Lad. 85, 36, Lim. 21. 



