Diatoms from North-East Greenland. 



225 



Distribution of the Marine Diatoms. 



•'s о 



о 



Âchnanthes 



— brevipes 



— — intermedia 



— — elliptica . . 



— — parvula . . 



— groenlandica .... 



— hyperborea 



Actinocyclus 



— alienus arcticus . . 



Amphipleura 



— rutilans 



antarctica 



Amphiprora 



— gigantea sept. . . 



— Kjellm. glacial. 



Ampliora 



— acutiuscula 



— angusta . . . 



— costata .... 



— crassa 



— Eunotia . . . 



— granulata . . 



— lævis lævissima 



— lineolata .... 



— macilenta . . . 



— margaritifera 



— marina 



— Proteus 



— — coniigua 



— Terroris 



— — inflata 



Auricula 



— minuta 



Biddulpliia 



— arctica 



— — Balœna . . 



— aurita 



— suborbicularis var. 



Caloneis 



amphisl). fuscata. 



17 



20 



19 



(Caloneis) brevis . 



— kryophila 



Campylodiscus 



— angularis . 



Chætoceros 



Diadema 



— septentrionale. 



— sociale 



Cocconeis 



— costata 



— pacifica . . . 

 dirupta decipiens. 



pinnata 



pseudomarginata . 

 Scutellum 



— minutissima 



— californica . 

 septentrionalis . . . 



Coscinodiscus 



— concinnus .... 



— radiatus 



— septentrionalis 



— subtilis 



Diploneis 



— borealis 



— coffæiformis 



— Entomon 



— interrupta 



— littoralis arctica . 



— — hyperborea 



— muscæformis .... 



— Smithii 



— splendida 



— subcincta 



— vacillans 



Fragilaria 



— Cylindrus 



— islandica hyperb. 



— striatula 



Gomphonema 



— exisfuum arctic. 



23 12 9 29 



XLIII. 



18 



