INDEX 



THE GENERA AND SPECIES DESCRIBED IN VOL. I. 



The names printed in italics are synonyms. 



Page 

 A CHNANTHWIUM, 

 Kiitz. 



flexellum, Bi'eli. ... 21 



ACTINOCYCLUS 25 



undulatus 25 



Amphipleura 45 



pellucida 45 



rigida, Kiitz 45 



sigmoidea 45 



Amphiprora 43 



alata 44 



constricta 44 



didyma 44 



latestriata, Breb. ... 42 



paludosa 44 



vitrea 44 



Amphora 19 



affinis 19 



?costata 20 



hyalina 19 



lineolata, Kiitz. ... 20 



membranacea 20 



minutissima 20 



ovalis 19 



salina 19 



? tenera 20 



Arachnoidiscus... 25 



Ehrenbergii 26 



Japonicus, Prit. ... 26 



AULACOCYSTIS, Hass. 



pellucida, Hass. ... 45 



Campylodiscus ... 28 



Argus, Bail 30 



costatus 29 



cribrosus 29 



Hodgsonii 29 



Horologium 28 



parvulus 30 



Ralfsii 30 



spii'alis 29 



Ceratoneis, Ehr. 



Arcus, Kiitz 16 



Closterium,, Kiitz ... 43 



Fasciola, Kiitz. ... 67 



gracilis, Bre'b 43 



longissima, Kiitz... 42 



Page 



COCCONEIS 21 



diaphana 22 



Grevillii 22 



Pediculus 21 



Placentula 21 



Scutellum 22 



Thwaitesii 21 



COCCONEMA 75 



Boeckii, Ehr 77 



Cistula 76 



cymbiforme 7^ 



lanceolatum 75 



parvum 76 



COSCINODISCUS 22 



eccentricus 23 



minor 23 



radiatus 23 



Ctenophora, Breb. 



pulchella, Breb. ... 70 



Cyclotella 27 



antiqua 28 



Kiitzingiana 27 



operculata 28 



operculata j3. rect- 



angula, Kiitz.... 27 



Rotula 28 



Cymatopleura ... 36 



apiculata 37 



elliptica 37 



Hibernica 37 



parallela 37 



Solea 36 



Cymbella 17 



affinis 18 



"? Arcus, Hass 16 



cuspidata 18 



Ehrenljcrgii 17 



fiexellu, Kiitz 21 



Helvetica 18 



maoulata 18 



reniformis, Ag 76 



Scotica 18 



turgida, Hass. ...... 12 



Zebra, Hass 12 



Diatom A. 



trtmcafum, Grev . . . . 71 



Page 



crystallinum, Ag. ... 74 

 DiscopLEA, Ehr. 



atmospherica, Ehr.. 28 



DORYPHORA 77 



Amphiceros 77 



Boeckii 77 



ECHINELLA, Lyng. 



flabellata, Ehr 86 



geminata, Lyng. ... 78 



olivacea, Lyng. ... 80 



paradoxa, Lyng.... 84 



Epithemia 11 



alpestris 13 



alpestris, Kiitz. ... 12 



Ai-gus 12 



constricta 14 



gibba • 15 



grauulata 12 



Hyndmanii 12 



longicornis 13 



Musculus 14 



ocellata 13 



proboscidea 13 



rupestris 14 



Sorex 13 



turgida 12 



ventricosa 15 



Vertagus, Kiitz. ... 12 



Westermanii 14 



Zebra 12 



EUNOTIA 15 



Arcus 15 



Amp hioxys, Kiitz... 41 



Diadema 17 



diodon 16 



fiexuosa, Kiitz 69 



gibba, Prit 15 



gracilis 16 



granulata, Ehr. ... 12 



monodon 16 



tetraodon 16 



triodon 16 



turgida, Ehr 12 



Westermanii, Ehr.. 14 



Zebra, Ehr 12 



EupoDiscus , 24 



