149. Ditylium intricatiun (West) Grun. 



150. Lithodesmiiim undnlatum Ehrenb. 



I 







I. Biddulphia mobiliensis (Bail.) Grun. 



152. — pulchella Gray 



153. Triceratium ardicum (Brightw.) Cleve 



154. — alternans Bail. 



155. Hemiaulns Hauckii Grun. 



156. Cerataulma Bergonii H. Perag. 



i^y, — Bergonii var. elongata Schroed 



158. Rhisosolenia alata Brightw. 



i^g. — alata fa. gracillima Cleve 



160. — calcar-avis Schulze 



161. — Castracanei H. Perag. 



162. — formosa H. Perag. 



163. — fragilissima Bergon 



164. — imbricata Brightw. 



165. — styliformis Brightw. 



166. — robusta Norm. 



167. — semispina Hensen 



168. — setigera Brightw. 



169. — Shrubsoiii Cleve 



170. — Stolterfothii H. Perag. 



171. - Temperei H. Perag. 



172. — acuminata H. Perag. 



173. Gitinardia flaccida H. Perag. 



174. Chaetoceros devisus Cleve 



175. — convolutus Castrac. 



176. — tetrasticus Cleve 



177. — Dadayi Pavill. 



178. — danicus Cleve 



179. — neapolitanus Schroed. 



180. — peruvianus Brightw. 



181. — peruvianus var. currens Cleve 



182. — peruvianus var. gracilis Schroed. 



183. — peruvianus var. saltans Cleve 



184. ? — peruvianus var. volans (Schuett) Gran 



185. — affinis Laud. 



