304 Notice of Ehreriberg's Memoir on Microscopic Life. 



Fig. 20 

 21 

 22 

 23, 

 24, 

 25 

 26 

 27 

 28, 

 29 

 30 

 31 

 32 

 33 

 34 

 35 

 36 

 37. 

 38, 



Fig. 3. 

 . 4. 



5. 



6. 



7. 



8. 

 17. 

 20. 

 21. 

 23. 

 26. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 35. 

 36. 

 37. 

 40. 

 41. 

 42. 



. Micrasterias Boryana, = 



" al. sp. - 



, Euastrum Rota, r 

 " Crux Melitensis, = 



" Rota juvenile, = 



" al. sp. - 



" al. sp. - 



" al. sp. = 



" al. sp. z 



" al. sp. - 



. Closterium lunula, z 



" moniliferum, z 



" Trabecula, z 



" digitus ? - 



" lineatum, z 



" striolatum, =- 



" rostratum, = 



" tenue ? z 



" al. sp. z 



II. Naviculacea. (See Part II 



, Gallionella moniliformis, z 



" aurichalcea, r 



" distans, z 



" varians, = 



" sulcata, = 



" ? al. sp. = 



Navicula viridis, = 



" al. sp. r 



? striatula, = 



Navicula al. sp. = 



Eunotia Arcus, = 



" monodon, = 



" diodon, = 



" triodon, - 



" tetraodon, - 



" pentodon, = 



" serra, = 



Bacillaria paradoxa, 

 " tabellaris, 

 " tabellaris adultior, 



Fragillaria pectinalis, 

 " bipunctata, 



Meridion vernale, 



J 



: Micrasterias Boryana. 



= " elliptica. 



z *Euastrum Sol. 



= " Crux Melitensis. 



r " Rota juvenile. 



- * " Americanum. 

 = " Pecten. 



- " ansatum. 



- * " carinatum. 



: " Crux Melitensis juv? 



rClosterium lunula ? turgidum? 

 = " moniliferum. 

 z " cremlatum. 



- (Polysolenia Closterium I) 



- Closterium turgidum. 



: " setaceum. 



= " tenue ? 



z " (Trabecula?) 



of Bailey's Bacillaria.) 



z Gallionella moniliformis. 

 : " aurichalcea. 



= " distans. 



: " varians. 



: " sulcata, 



r *Biddulphia ? tevis. 

 z Pinnularia viridis. 

 z " Suecica? 



z Surirella splendida. 

 z *Stauroneis Baileyi. 

 z Eunotia Westermanni. 

 : " monodon. 

 : " diodon. 

 = " triodon. 

 = " tetraodon. 



- " quinaria. 



= " decaodon. 

 : Bacillaria paradoxa. 



: Tabellaria trinodis. 



= Himantidium Arcus. 

 : Fragillaria rhabdosoma. 



- Meridion vernale. 





