— 115 — 



9 — 11 Triceratium alternans Ehr. 



*12 Triceratium 

 13 = tessellatum Shad. 



14 — 15 = antediluvianum Ehr. 



4. 1 Dicladia Capreolus Ehr. 



2 Syndendrium Diadema Ehr. 



3 Dicladia Capreolus Ehr. 



4 Chaetoceros didymum Ehr. 

 *5 Campylodiscus 



6 — 7 Surirella recedens A. Schm. 



8 Navicula spec. 



9 Rhabdonema Adriaticum Kg. 



10 Campylosira Doliolus (Wall.) Grün. 



11 — 12 Fragilaria spec. 



13 — 15 Gephyria incurvata Arn. 



16 — 17 Grammatophora hamulifera var. constricta Grün. 



18 = subundulata Grün. 



19 * flexuosa Grün. 



20 Eucampia Zodiascus Ehr. 



21 Navicula? 



22 Anaulus birostratus Grün. 



23 Amphora oblonga Greg. 



24 — 25 Epithemia Westermannii Kg. 



26 Campyloneis Grevillei Sm. 



27 Cocconeis pseudomarginata Greg. 



28 * lamprosticta Greg. 



29 Navicula Californica Grev. 



30 * Lyra Ehr. var. 



31 = digrediens A. Schm. 



32 = Crabro Ehr. var. 

 33 — 34 Stauroneis pulchella Sm. 



35 Pleurosigma directum Grün. 



36 Melosira sulcata Kg. 



37 = arenaria Moore. 



38 * sulcata Kg. 



39 Sphaerotermia Horologium Ehr. 



40 Podosira Febigeri Grün. 



41 Actinocyclus crassus Sm. 



5. 1 Actinoptychus Boliviensis Jan. 

 2 = Heliopelta Grün. 



3 — 6 = undulatus Ehr. 



7 = areolatus Ehr. 



8* 



