150 



E. Jørgensen. 



pag- 

 Coscinodiscus bioculatus Geun 91, 92 



— centralis Ehrb., Ratt. (pl. VI, fig. 1) 91, 93 



— concinnus W. Sm 91, 93 



— curvatulus Geun 91, 92, 97 



— decipiens Gkun., = Thalassiosira d 91, 96 



— excentricus Ehrb 91, 92 



— h-yopMlus Geun., = Thalassiosira k. 



— lineatus Ehrb. et var 91, 92 



— nitidus Greg 91, 9.5 



— ocuhis iridis 93, 9-t 



— polyaeanthus Grcn. et var 92 



— radiatus Ehrb 91, 92 



— stellaris Eop 91. 92 



— subbuUiens JøRG. n. sp. (pi. VI, fig. 2) 91, 94 



— symholophorus Grun 92 



Coscinosira polychorda (Gran) Gran 97 



Cnbosphærida Hck lU 



Cyttarocylis denticulata (Ehrb.) Eol. et var (pl. XIV, fig. 121 ; pl. XVIII, 



figs. 119-120) 144, 14.5 



— gigantea Brandt, = denticulata var. 



— norvegioa (Dad.) Jørg 144 



— serrata (Mob.) Brandt 144 



Detonula confervacea (Cl.) Gran 99 



Diatomaceæ, = Bacillarlales. 



Diotyoceras acauthicum JØRG. (pl. XVH-XVIII, fig. 101) 127, 128, 140 



— xiphephoruni JøRG 127, 128, 140 



Dictyocha fibula Ehrb 114 



Dictyocircus clatliratus Jørg. n. sp. (pl. XIU, fig. 48) . 125, 127, 128, 129, 130 



Dictyocysta templum Hck. et var 145 



Diotyophimus Clevei Jørg 127, 128, 137, 138 



— graeilipes Cl., = Clevei. 



histricosus Jørg. n. sp. (pl. XVI, fig. 89) 138 



Dicyrtida Hck 135 



Dinoflagellata 108 



Dinopliy.sis acuminata Clap, et Lachm,, Jørg 108 



— acuta Ehrb.. Jøro 108 



— homunoulus Stein 108 



— Michaelis, = rotundata. 



— norvegioa Clap, et Lachm., Jørg 108 



— rotundata Clap. et Lachm 108 



— Vanhoffeni Ostenf., = acuminata. 



Diplopsalis lenticula Bergh 109 



Distephanus speculum (Eheb.) Stohr 114 



Ditylium Brightwellii (West.) Grun 99 



Drymyomma elegans Jørg. (pl. VIII, fig. 34) 114, 117 



Kchinomma HcK 114, 1 l(i 



Kchinomma leptodermum Jørg. (pl. VIJI, fig. 33) 1 Ki 



— trinacrium HcK 1 1 1> 



Eucampia groenlandica Cl. (pl. VI, fig. 8) 99 



Euetjrtidium seriatum Jørg., = Stichoconjs s. 



Euodia gibba Bail 95 



Eapodii^ceæ 98 



Eusceniuni corynepliorum Jøeg. (pl. XV, fig. 70) 133 



— tricolpium Hck., = Cladoscenium t. 



Flagellata 113 



I'ragilaria cylindrus Grun. (pl. VI, fig. 9) 102 



islandica Grun. (pl. VI, fig. 10) 102 



— oceanica Cl 102 



Gazelletta pentapodiuni Jøro 142 



Glypbode.smis Williamsoni (W. Sm.) Grtjn 102 



Gonosphæra primordialis Jørg. n. sp. (pl. XIV, figs. 64—68) 129, 1.32, 133 



Gonyaulax spinifera (Glap. et Lachm.) Dies 109 



Grammatophora islandica Ehrb 102 



— oceanica Ehrb 102 



Gynmaster pentasterias (EhrB.) Schutt 11.3 



Halicalyptra cornuta Bail 139 



Halosphæra minor Ostenf., = viridis 113 



— viridis Schmitz 113 



TTpk\ osgla-geiraoeae 113 



Helotholus histricosa Jørg. n. sp. (pl. XVI, iigs. 86—88) 127, 128, 137 



pag- 

 Hemidiscus ameiformis Wall., = Euodia gibba. 



Hexacontium enthacanthum Jøeg. (pl. VIII, fig. 30) 114, 115 



— pachydermum Jøeg. (pl. VIII, fig. 31) 114, 115 



Seæadoras borealis Cl., = Rhizoplegma h. 



Hyalodiscus scoticus (KtJTz.) Geun 98 



— .stelliger Bail 98 



— subtilis Bail 98 



Larcospira minor (Jøeg.) Jørg 114, 121 



Lauderia confervacea Cl., = Detonula c. 



— fragilis Gean, = Bacterosira f. 



— glacialis (Grun.) Gran, = Porosira g. 

 Leprotintinnus bottnicus (Nordq.) Jørg., = — jielliicidas. 



— pellucidus (Cl.) Jørg. (pl. XVIH, fig. 114) 142 



Libellus septentrionalis Oeste., = Stauroneis s. 



Litharachnium tentorium Hck. (pl. XVI, figs. 90—91) 138 



L.ithelida Hck 121 



Lithelius minor Jørg., = Larcospira m. 



— spiralis Jørg 121 



Lithomelissa hystrix Jørg. (pl. XVI, fig. 85) 136 



— laticeps Jørg. n. sp. (pl. XVI, fig. 84) 1 36 



— setosa Jørg. et var. (pl. XVI, figs. 81—83: pl. XVIII, fig. 108 126 



127, 128, 135 



Lithomitra australis ('l 140 



Medusetta arcifera Jørg 142 



— parthenopæa Borg 1 42 



Mednsettida Hck 142 



Ilt'lOKirow 96 



Moiiooyrtida Hck 125, 131 



ISTasselXairla 122 



Navicula directa Kalfs 105 



— frigida Grun. (pl. VII, fig. 21) 105 



— kariana Geun 105 



— pelagica Cl. (pl. VH, fig. 23) 105 



— sepienirionalis Oestr 105, 106 



— Vanbiiffeni Gran (pl. VH, fig. 22) lOo, 106 



JTavienleæ 105 



Nitzschia angularis W. Sm. et var. (pl. VI, fig. 14) 104 



— arctica Cl. (pl. VII, fig. 15) 101 



~ bilobata W. Sm Iii3 



— closterlum (Ehrb.) W. Sm 104 



— delicatissima Cl 103 



— fraiidulenta Cl 1 03 



— frigida Geun 103 



— hybrida Geon. (pl. VI, fig. 12) 103 



— lanceolata W. Sm. et var. (pl. VI, fig. 13) 104 



— longissima (Bréb.) Ralfs 104 



— Mitchelliana Geeenl 1 ut 



— recta Jørg., = arctica Cl. 



— seriata ('l 1 03 



— spathulata Bréb Io4 



NitKseliiea' Kt.i 



Orhi/u/lr .iilnsiijh' JoRO., = Pltorticium pylouium. 



Orllinsini <ui,iidal(t Oreg. = Thalassiosira decipiens. 



Oxytiixnni diploi'onns Stein 109 



Paralia sulcata (Eurb.) Cl 98 



Fe-n -n a-tae Schutt 102 



I>©3ric3.iixial©s 1 OS 



Peridinium conicum (Gran) Ostenf. et Schm 110 



— depressuni Bail 1 09 



— divergens Ehrb 109 



Icnticularc (Errb.) Jørg., = — divergens. 



— Michaelis Ehrb., = — conicum (Gran). 



— Michaelis Stein, = — Steinii Jøeg. 



— oceanicum Vanhofs 1 09 



— ovatum (Pouch.) Schutt Ill 



— ))alliduni Ostenf 1 1<> 



— pedunculatum Schutt. (pl. VIII, fig. 29) 110 



— pelluoidum Ostenf 110 



— pentagonum Gran 110 



— Steinii Jørg 111 



