Diatoms from North-East Greenland. 211 



linea mediana nuda interruptis. Raphe propior linea altera, minus 

 autem distincta, adest. 



Loc. Danmarks Havn (Algæ). 



This species may be a form intermediate between Amphora ovalis Kûtz. 

 and Amph. Proteus Greg. 



Subgen. Diplamphora CI., 1895, 



Amphora crassa Greg., CI. Syn., II, 109; A. S. Atl., Tab. XXVIII, 



figs. 30 — 33 (A. crass, punctata). 



Loc. Off Cape Amélie (Algæ, 3 sampl. I, Danmarks Havn (Algæ), Koldewey 

 Isl. (Algæ). 



A ret. Distr. Greenl.. East Arct. S. 



Amphora margaritifera Cl., Cl. Syn., II, 117: Tab. III, figs. 

 30—31, Øst. Kyst D. f. Grønl., 325: Tab. II, fig. 6 (A. cruciata Øst.). 



Loc. Danmarks Havn (Algæ). 



Arct. Distr. W. Greenl. 



I am now quite sure that this form, which, in my paper quoted above, 

 I recorded as a new species (referring however to its affinity to A. margar.) 

 is identical with A. niarg. CI., a form from Galapagos Islands. 



Subg. Halamphora CI., 1895. 

 Amphora acutiuscula Kütz., Cl. Syn., II, 121 ; V. H. Trt., Tab. I, 

 flg. 5. 



Loc. Danmarks Havn (Algæ, 2_sampl.), Koldewey Isl. (Algæ). 

 Arct. Distr. W. Greenl.. East Arct. S. 



Amphora costata W. Sm., Cl. Syn., II, 122; W. Sm. Syn., Tab. 

 XXX, fig. 253. 



Loc. Danmarks Havn (Algæ), Koldewey Isl. (Algæ). 

 Arct. Distr. E. Greenl. 



Amphora Eunotia Cl., Cl. Syn., II, 122; A. S. AU., Tab. XXV, 

 fig. 35. 



Loc. Off Cape Amélie (Algæ, 3 sampl.), Koldewey Isl. (Algæ). 

 Arct. Distr. Greenl.. East Arct. S. 



Amphora granulata Greg., Cl. Syn., II, 123; Greg. D. Clyde, 

 Tab. XIV, lig. 96. 



Loc. Off Cape Amélie (Algæ). 



Not before recorded from Arctic Seas. Other records, Scotland, South-Asia. 



Amphora macilenta Greg., Cl. Syn., II, 121; Perag. D. mar. de 

 Fr., Tab. L, fig. 26. 



Loc. Off Cape Amélie (Algæ). 



Not before recorded from Arctic Seas. According to Peragallo (1. c. 

 p. 231): "Répandu. 



Amphora Terroris Ehr., Cl. Syn., II, 122; A. S. Atl., Tab. XXV, 



figs. 17 — 19. 



Loc. Ofl' Cape Amélie (Algæ, 5 sampl.), Danmarks Havn (Algæ, 2 sampl.), 

 Koldewey Isl. (Algæ, 2 sampl.). 



Arct. Distr. Greenl., East Arct. S. 



17* 



