vom 9. August 1855. 



569 



p;i.,„„ I Abgela- | 



riltruin " 



IT k \ oeiier 

 ( 1 rubuti") £, 7 , 

 ^ " Srhlamm. 



Gomphoncma gracile 



/> 



Navicula gracilis 

 ? 



Pinnularia bnrealis 



viridis 

 Surirella sigmoidea 

 Sjrnedra acuta 

 Ulna 



Phytolitharien: 11. 

 Lilhosphaeridium irreguläre 

 Lilhoslylidium angulalum 

 crenulalum 

 denticulatum 

 laeve 



quadratum 

 rüde 

 Serra 

 triquetrum 

 SpongoUthis acicularis 

 oblusa 



Polythalamien: 11. 

 Grammostomum — ? 

 Marginulina — .'' 

 Milioia — ? 

 Planulina — ? 



Poljrmorphina ac.uleata 



Rotalia globulosa 



sennria 

 Sirophoconus — ? 

 Textilaria — ? 



10 



