■ eccentncus 



in Cattegat, and 

 can Gulf, Vera 

 lineatus North Sea, Cuxhaven 



C. M. Greece. 



. C. M. Oran. 



Oculus Iridis . 

 Patina .... 



29. radiatus . . . 



30. Dictyocha sulcata 

 31. Fibula . . . 



454. Mr. Weaver's Vieixi of Ehrenberg's Observations 



Living. Fossil, 



r Baltic, N. Sea, Mediter- "1 



21. Biddulphia pulchella. < ranean, and Ocean near j. ( 



22. Cocconema lanceola-| g^gj,j^j5^3„j fresh waters. C.M.Greece. 



*"" »T u c <- u r C. M. Caltasinetta and 



23. Coscinodiscus Argus. North Sea, Cuxhaven . . | ^^^^ 



,Tjbrn1 

 Mexi- \ ( 

 Cruz, J 



25 lineatus JNortn sea, i^uxnaven . . C. M. Caltasinetta. 



^ r CM. Caltasinetta, Oran, 



■ ■ \ and Zante. 



. . CM. Greece. 



. . CM. Zante. 



r — ,and "1 C M. Oran, Caltasinetta, 



\ Baltic, Wismar J and Zante. 



^^ , „ „... f CM. Caltasinetta, Oran, 



. North Sea near Tjorn . .| gante, and Greece. 



r N. Sea, Christiania and "I C M. Oran and Caltasi- 

 '\ Tjbrn,& Baltic, Wismar J netta. 



32. Pentasterias . . N. Sea, Christiania haven. 



r N. Sea, Cuxhaven, Chris- ' 



33. Speculum . . • S tiania and Tjorn, Bal- 



|_ tic, near Kiel ^ 



34. Eunotia granulata . . Brackish and fresh waters. CM. Greece. 

 35 Zebra Berlin fresh waters .... CM. Greece. 



36. Fragilariarhabdosoma { ^^^^^ "sweln "".T '. } ^^ ^ Gravesend. 



37. striolata • • W. C Gravesend. 



TBerlin fresh waters, Leip- "] 

 zig, Thuringia, Fran. 

 38. Gallionella aurichalca-< conia, Wiirzburg.Stutt- >\V. C Rijgen. 

 I gart, and on rocks near 

 I the Faroe Isles ... .J 

 »T , o .-.1. r C M. Caltasinetu, Oran, 



39. sulcata North Sea, Cuxhaven . .| ^ante, and Greece. 



40. Grammatophora afri- "I j^ g^ Heligoland, Tibrn C M. Oran. 



cana J 



41. angulosa .... North Sea, Tjorn .... CM. Oran. 



ICallao in Peru, Vera Cruz'^ 

 in Mexico, Tjorn in 

 Cattegat, Wismar in >C. M. Oran. 

 Baltic, and the Mediter- 

 ranean J 



C M. Zante. 



C M. Caltasinetta, Oran, 

 Zante, and Greece. . 



43. undulata . . . 



44. Haliomma radians . 



45. Navicula Didymus. 



46. Entomon . . , 



47. norwegica . 



48. quadrifasciata 



f Among marine Conferva "1 ^. ^ ^^^^^^ 



]_ near Vera Cruz J 



. North Sea, Cuxhaven . . C M. Greece. 



_ r N. Sea, Cuxhaven, Baltic, 1 ^ ^ Caltasinetta. 



L Wismar J 



. N. Sea, Christiania haven. C. M. Greece. 

 . CM. Greece. 



■ L and Tjiirn Isle J 



49. 



SO. 



J rr- •• T 1 rC. M. Greece, 



and Tjorn Isle ' 



r Paris, Berlin, Saxony, Bo- 



ventricosa. • . .-s hernia, Buchtarma in 



[ Altai, and Irtysch. 



{Berlin fresh waters, Weis- T 

 senfels in Saxony, and K C 

 Wismarin Mecklenburg. J 



C M. Oran. 



M. Greece. 



