P. T. Cleve: The Diatoms of Finland. 67 



Hyalodiscus Ehb. 



H. scoticus (Kiitz.) Gran. — V. H. LXXXIV, 15—17. 

 Foss. B. 101, 102. 



Cyclotella Kutz. 



C. Kiitzingiana Chauvin. — V. H. XC1V, 1—10. 

 Ab. 36, Kon. 41, 

 Foss. Sa. 89. 

 var. Schumannii. 

 Lad. 66, 85, 86. 



C. Meneghiniana Kiitz. — V. H. XCIV, 17—19. 

 Ab. 37, 43. 

 Foss. Ta. 95, 96. 



C. comta Ehb. var. radiosa Gran. — V. H. XCIII, 1—9. 

 Al. 57, Ab. 36, 38, 45, 46, 48, Kus. 72, Lad. 61, 68, 85 

 Kon. 41, 42, Sb. 4, 5, Lim. 23. 



C. stelligera CI. a. Gran. — V. H. XCIV, 22—26. 

 Foss. Ta. 95, 98. 



Actmocvclus Ehb. 



m 



A. crassus (W. Sm.) Ralfs. — V. H. CXX1V 6, 8. 



Mb. Al. 58. 



Foss. B. 101, 102. 



var. moniliformis Ralfs. — V. H. CXXV, 9. 



Foss. B. 102. 



Stephanodiscus (Ehb.) Grun. 



S. astraea (Ehb.) Grun. — V. H. XCV, 5. 

 Ab. 47, Lad. 63, 68, 85, 86, Kon. 41. 

 var. minutulus Grun. — V. H. 7 — 8. 

 Al. 57, Ab. 48, Lad. 61, 65, 66, Sb. 5, 6. 

 Foss. Ta. 96. 



