XXV, Navicula Scalprum, XXVl. Navi- 
cula acuminata, XXVII, Navicula thuringica,. XXVIll, 
Navicula attenuata, XXIX, Navicula Hippocampus. XXX, 
Amphipleura rigida, XXXl, Navicula curvula, XXXIl, Na- 
vicula baltica,. XXXIIl, Synedra tergestina. XXXIV, Sy- 
nedra armoricana, XXXV, Synedra vermicularis, XXXVl, 
und XXXVIl, Synedra sigmoidea, XXXVIll, Ceratoneis 
spiralis. 
vicula nobilis, 
TAF. 5. 
Fig. 1. 1. 2.3. Schizonema Grevillii (420mal vergr.) — 
* * * Rhipidophora cerystallina, 11. Navicula acrosphae- 
ria, Ill, Navicula mesotyla, IV, Navicula truncata. V. 
Navicula appendiculata, VI, 1, Cocconeis marginata, 2. 
u. 9, Cocconeis adriatica., 3, et 6. Cocconeis Scutellum, 
4. Cocconeis pygmaea, 5. Cocconeis oceanica, 7. Cocco- 
8, Cocconeis mediterranea, VII. 1. 2, 
3. Diatoma vitreum. VII 1. Cym- 
2. Cocconeis depressa. 3. Cocconeis 
4. Cocconeis oceanica. 5. Cocconeis 
7. Cocconeis ob- 
limbata. 
neis peruviana, 
Cocconeis molesta+- 
bella Pediculus. 
Pediculus salina. 
aggregata. 6. Cocconeis confociata. 
longa. 8. Cocconeis nigricans. 9. Cocconeis 
10. Cocconeis nigricans ß. denudata. 1X. 1. Cocconeis 
Pediculus, 2, Cocconeis pumila. 3, 4. Cocconeis Pedi- 
culus minor: X. Doryphora Amphiceros, XI. Cocconeis 
undulata, XIl, I—4, Epithemia Westermanni, 5; Epi- 
themia Sorex, 6, Epithemia Zebra. XIII, Epithemia pro- 
boscidea, XIV, Epithemia turgida,. XV, Epithemia sa- 
xonica,. XV]l, Epithemia alpestris, XVII. Surirella ambigua, 
XVIll, und XIX, Epithemia Porcellu, XX, Epithemia 
granulata. XXI, Epithemia Faba, XXI, XXIII, Himan- 
tidium Arcus, XXIV, Eunotia Diodon, XXV, Eunotia 
Triodon, XXVl, Eunotia Tetrodon, XXVII, 1, Eunotia 
quinaria, 2, Eunotia Pentodon. XXVII, Eunotia Dia- 
dema, XXIX, Eunotia Decaodon., XXX. Eunotia Serra, 
XXXI Amphora elliptica, XXXIL. Amphora acutiuscula, 
XXXII, Amphora aponina, XXXIV, Cocconeis Pinnularia, 
XXXV, u. XXXIX, Amphora ovalis, XXXVl, Amphora 
!ineolata, XXXVIL Amphora coffeaeformiss XXXVIILL, 
Amphora Fischeri»z, XL, Navicula latiuscula, 
TAF, 6. 
Fig. I, Cocconema Cistula, 1. a, b, Cymbella ma- 
eulata, I1l, Cocconema lanceolatum,. IV, a.und b-» Cym- 
bella gastroides, V. Cocconema Boeckii. VI, Cocconema 
VIl, Cymbella Pediculus, VIll, Cymbella flexella, 
X, Ceratoneis Arcus, XI. Cym- 
XI, Cocconema eymbiforme, XIll, 
XIV, Cymbella leptoceras, _ XV, 
XVl, Cymbella ventricosa, XVll. Cym- 
gihbum. 
1X, Cymbella gracilis, 
bella Ehrenbergii, 
Cymbella helvetica, 
Cymbella affinis, 
bella excisa, 
TAF, 7. 
Fig. 1. II, Il, IV, Surirella ovata, Fig, V, Surirella 
Patella. VI, Surirella striatula. VII, Epithemia alpestris. 
VII Surirella (Podocystis) adriatica, 1X, Surirella splen- 
2 es» 
dida. X. Surirella bifrons. XI, Surirella Gemma, XII, 
Sphenella vulgaris, XlIll. Gomphonema olivaceum. XIV, 
Gomphonema angustum, 
XVl, Meridion eirculare, 
TAF. 8. 
Fig, I. Il, II. Gomphonema curvatum. IV, Sphenella 
angustata, V. VI. Gomphonema abbreviatum, VIl. Po- 
dosphenia debilis, WVIll. a. Gomphonema abbreviatum, 
VIll b. Gomphonema tenellum. IX, Gomphonema telo- 
X, Rhipidophora cerystallina. XI. Gompho- 
Xll. Gomphonema micropus, XIll, 
XIV, Gomphonema dichotomum, 
XVl. Rhipidophora Nu- 
XV, Gomphonema olivaceum. 
graphicum, 
nema minutissimum, 
Podosphenia tergestina, 
XV, Gomphonema subramosum, 
becula, 
TAF, 9. 
Fig I. Sphenella obtusata. Fig. II. Sphenella rostel- 
lata P. elongata. Fig, II. Sphenella rostellata, IV. Gom- 
V, Rhipidophora australis. VI. Rhi- 
pidophora borealis,. VII. a, Rhipidophora dalmatica. 
VI. Rhipidophora. grandis arachnoidea. IX. Podosphe- 
nia hyalina. X, 1. Podosphenia gracilis, 2. Podosphenia 
3. Podosphenia Lyngbyei. 4. Podosphenia gra- 
minor. 5. Rhipidophora crystallina, XI. Podo- 
sphenia gracilis minor, XI, Podosphenia Jürgensii., 
XIll. Podosphenia Ehrenbergii, XIV. Khipidophora ab- 
hreviata, 
phonema intricatum. 
b. 
hyalina, 
eilis 
TAF, 10. 
Fig. I. u. II, Podosphenia Lyngbyei, 
hyalina racemosa, IV, Rhipidophora oceanica. V. Rhi- 
pidophora paradoxa, VI. Rhipidophora elongata. VII 
Rhipidophora superba. VII, Climacosphenia australis. 
TAF. 11, 
Fig. 1. Rhipidophora grandis, Il. Rhipidophora Me- 
neghiniana. III Rhipidophora tenella. 1V,. Licmophora 
radians. V. Licmophora divisa, VI, Synedra Ehren- 
bergii, 
Ill. Podosphenia 
TAF. 12. 
Fig I. 1. Licmophora radians. I. 2. 3.4. Liemophora 
flabellata. 5. 6, Stiele derselben Art, ohne Stäbchen, bloss 
100 mal vergr, Il, 1—5, Synedra dalmaltica, 
TAF. 13. 
Fig. I, 1. 2. 3. Gomphonema constriectum. 4, a. b, 
Gomphonema capitatum P. majus. 5. Synedra lunaris, 
6. Gomphonema dichotomum f£. sessile. 7. Gomphonema 
acuminatum, 11, Gomphonema geminatum, c, Achnanthes 
minutissima, II. Gomphonema acuminatum, 1V. Gom- 
phonema constrictum. V. Licmophora fulgens, 
TAF. 14. 
Fig. 1. a. b. Synedra parvula, 2, Gomphonema ab- 
11. a. Synedra subtilis. II, b. Synedra graci- 
IV. 1.2,2.3. Synedra Vau- 
breviatum, 
lis. 11 Synedra dissipata. 
