INDEX 



THE GENERA AND SPECIES DESCRIBED IN VOL. II. 



The names printed in italics are synonyms. 



Page 



ACHNANTHES .... 25 



brevipes 27 



brevipes, Kiitz. . . 27 



Carmichaelii, Grev. 27 



exilis 29 



intermedia, Kiitz. . 28 



longipes 26 



minutissima, Ralfs. 29 



salina, Kiitz 28 



subsessilis 28 



unipunctata, Grev. 37 



ACHNANTHIDIUM. . 30 



coarctatum 31 



lanceolatum 30 



lineare 31 



microcephalmn . . 31 



Actinocyclus . . . . 86 



duodenarius 86 



octodenarius .... 86 



sedenarins 86 



Actjnoptychus, Ehr. 



duodenarius, Ehr. . 86 



octodenarius, Ehr. 86 



sedenarins, Ehr. . . 86 



Amphipleura .... 90 



inflexa 90 



Amphiprora 90 



elegans 90 



Amphitetras .... 46 



antediluviana .... 47 



Amphora 85 



affinis /3 85 



Arcus, Greg 85 



Asterionella .... 81 



Bleakeleyii 82 



formosa 81 



Ralfsii 81 



Aula cosira. 



crenulata, Thw. . . 61 



Bacillaria 8 



cuneata, Ehr 40 



elongata, Ehr 40 



flocculosa, Ehr. . . 40 



paradoxa 10 



tabellaris, Ehr. . . 45 



vulgaris, Ehr 39 



Page 



Bangia, Lyng. 



quadripunctata . . 77 



Berkeleya 67 



Adriatica, Kiitz.. . 67 



fragilis 67 



Biblarium, Ehr. 



emarginatum, Ehr. 38 



Glans, Ehr 38 



speciosum, Ehr. . . 38 



Stella, Ehr 38 



BlDDULPHIA 47 



aurita 49 



Baileyii 50 



pulchella 48 



quinque-locularis, 



Kiitz 48 



regina 50 



Rhombus 49 



septem-locularis, 



Kiitz 48 



tri-locularis, Kiitz. 48 



turgida 50 



Campylodiscus. 



bieostatus 88 



Clypeus 88 



Cerataulus, Ehr. 



turgidus, Ehr 50 



COLLETONEMA .... 69 



eximium 69 



.neglectum 70 



subcohaerens .... 70 



vulgare 70 



Conferva, Dillw. 

 Biddulphiana, Eng. 



Bot 48 



bronchialis, Roth. . 12 



fasciata, Dillw. . . 57 



flocculosa, Dillw.. . 45 



fatida, Dillw 78 



lineata, Dillw 57 



lucens, Thore .... 12 



nummuloides, Dillw. 55 



obliquata,Eng.TSot. 52 



pectinalis, Dillw.. . 12 



stipitata, Eng. Bot. 27 



striatula, Eng. Bot. 35 



Page 



tceniceformiSfTLng.B. 42 



Coscinodiscus. 



concinnus 85 



perforatus 85 



Cyclotella. 



Dallasiana 87 



punctata 87 



Cymbella. 



sequalis 84 



Arcus 85 



Helvetica /3 84 



lunata 84 



Scotica 84 



ventricosa 84 



Denticella, Ehr. 



aurita, Ehr 49 



Denticula 19 



acuta, Raben 20 



inflata 20 



obtusa 19 



ocellata 20 



sinuata 21 



tenuis 20 



Diatoma 38 



arcuatum, Lyng.. . 34 



auritum, Lyng. ... 49 

 Biddulphianum, 



Ag 48 



brachygonum,Gre\. 42 



Ehrenbergii, Kiitz. 40 



elongatum 40 



elongatum, Ralfs. . 40 



fenestratum, Lyng. 46 



jiocculosum, Lyng. 45 



grande 39 



hyalinum 41 



marinum, Lyng. . . 42 



minimum 41 



obliquatum, Lyng. 52 



pectinate, Kiitz. . . 22 



stellare, Ralfs .... 81 



striatulum, Grev.. . 35 



tenue, Ag 39 



tenue, Kiitz 17 



tenue, Ralfs 40 



virescens, Hass. . . l'l' 



