440 



Ehren berg: Verbreitung und Eiirflufs 



32 Lithasleriscus osculalus 



33 — luberculosus 



34 — radialus 



35 Lithostylidium amphiodon 



36 — Serra 



III 



1 Pinnularia viridis 



2 Navicula affinis Seiten-Ansicht 



3 — biceps (dubia ?J 



4 Synedra spectabilis 



37 Lithostylidium ovatum 



38 — geniculalum 



39") 



41 



Lithodontium furcatum 



1 Pinnularia peregrina 



2 — macilenta 



3 — didyma 



4 Navicula affinis 



5 — Sigma 



6 — curvula 



7 Surirella fastuosa 



1 Stauroneis phoetiicenteron 



2 Pinnularia viridis 



3 — macilenta 



4 Navicula affinis 



5 Surirella Craticula 



— nasulum. 



Venezuela, Caraccas, pag.310. 



5 Spongolithis (Spongilla) lacustris, Fragment 



6 Lithostylidium amphiodon 



7 — quadratum ? 



8 Lithodontium Bursa. 



IV. St. Domingo, pag.312. 



8 Coscinodiscus minor 



9 — flavicans ? 



10 Eunotia Diodon 



11 Dictyocha Fibula ß 



12 — trifeneslra 



13 Spongolithis capitata? (Clavus ?) 



V. Guadeloupe, p.3!l. 



6 Synedra spectabilis 

 1 Eunotia Monodon 



8 Lithostylidium amphiodon 



9 — polyedrum. 



VI. Cuba, p.313. 

 1 Climacosphenia moniligera a breite Seite in 17 Coscinodiscus minor? 

 Selbsttheilung, 6 schmale Seite 



2 Synedra Gallionii a. b. 



3 — laevis a. b. c. 



4 _ f7/, 3 a? 



5 1 



> Grammatophora oceanica 



6 i 



7 — angulosa 



5 gibba a. b. 



9 Amphipenlas ? alternans, an Conwpelta? 

 10 Cocconei's Scutellum, an striata? utraque adest. 



"1 - 



12J 



13 — decussata 



14 Surirella fastuosa 



15 Actinoptychus Jupiter? 

 lS Coscinodiscus radiolatui 



\ S Biddulphia pulchella 



19 Denticella Biddulphia 



20 Slauroplera asper a? 



2 1 Pinnularia viridis 



22 — peregrina 



23 Pinnularia Termes 



24 Navicula duplicata 



25 — Sigma 



26 — amphioxys 



27 — lineo/ala 



2S Amphiprora constricta 



29 Fragilaria — . ? (^cfr. Navicula Trabecula) 



30 Stauroneis Polygramma 

 3 t Achnarilhes pachypus 



32 Gomphonema claeatum 



33 Eunotia Argus? 



