14 
C. elegans Grev. . 34 
C. obliquns Grev. . 35 
47. Craspedodiscus 
C. sp. A-14: 27 
C. coronatus Brightw. ........A-15: 36 
C. coscinodiscus Ehrb. A-13: 60 
.A-15: 37-52 
C. elegans Ehrb. . 53-67 
C. microdiscus Ehrb. . 68 
C. minor Cieve. & Ehrb. . 69 
C. moelleris Schmidt. . 70 
48. Craspedosporus 
C. elegans Gr. & St. .. 71 
C. pantoescli Brun. ........ 72 
49. Craticula 
C. sp. A-23: 49 
C. ehrenbergii Grun. orig. A-15: 73 
(3. elegans C.F. n. sp. . 74 
50. Cresswellia 
C. sp. . 4 
C. ferox Grev. . 75 
C. superba Grev. .A-14: 7 
, .A-15: 76-77 
51. Cyclotella 
(2. actinocyllus Brun.-n.sp. . 78 
C. antiqua W. Sm. 79-82 
C. astraea Kutz. .. 83 
C. astraea Kutz. . 32-33 
var. carconensis 
C. bodanica Eul. in Grun. . 84 
C. CQmta Kutz. ! . 85 
C.‘ comta Kutz. . 86 
var. radiosa Grun. 
C. rotula Kutz. _ . 87 
C. striata Grun. .. 88-89 
52. Cylindrotheca 
C. gracilis Grun. 90-91 
53. Cymatopleura 
. C. cochlea Brun. .. 92-94 
C. constricta Grun. .. 95 
C. elliptica W. Sm. ..A-15: 96-100 
A-16: 1-2 
