204 EUNST 0>Tiirp. 



Trachyneis Cl., 1894. 



Trachyneis aspera (Ehr.) Cl., var. (jeniiina Cl., Cl. Syn., I, 191; 

 V. H. Tri., TmI). IV, lig. !().-) (Nav. asp.). 



Lo c. OIV (".;ii)i' .\mélic (Aljjæ). 



Not beforo ri-coided from Arct. S. Several other records. 



Trachyneis aspera (Ehr.) Cl., var. imkjaris Cl., A. S. All., Tab. 

 XLVIII, figs. 2—0 (Nav. asp.). 



Lo c. Koldewey Isl. (Alj^æ). 

 Arct. Distr. W. Greenl. 



Trachyneis aspera (Ehr.) Cl., var. intermedia Grun., A. S. Atl., 

 1. c. lig. 14. 



Loc. OfTCape Amelie (Alj^æ, 5 sani])l.), Danmarks Havn {.\l}*æ), Off Cape 

 Bismarck (Alj*æ), Koldewey Isl. (Algæ, 2 sampl.), Marj^. ol' the Pack-Ice. 

 Arct. Distr. (îreenl., K. of Green!., East Arct. S. 



Trachyneis aspera (Ehr.) Cl., var. intermedia Grun. forma ro- 

 busta. Tab. nost XIII, fig. 3. 



Long. 250 /i. Lat. 38/i. Ser. alveol. 6 in 10//, alveol. 4 in 10/^. 



Loc. Otr Cai)e Amelie (Alj^æ). 



I think this form niaj^ be a robust, sculptured Track, asp. intern. Only 

 a fragment found. 



NaTiciilæ minusculæ Cl., 1895. 



Navicula bahusiensis Grun., var. arctica Grun. Fz. Js. Ld., 52, 

 Tab. 1, fig. 48. Øst. Mar. D. Østg., Tab. IV, figs. 30—31 (Nav. 

 bahus. Grun?). 



Loc. Dove Bugt. 



Arct. Distr. E. of Green., East Arct. S. 



The present form is identical with the fig. 31, quoted above, in my Mar. 

 D. Østg. As I have there pointed out, my specimens as well as the present 

 form, differ from Grunow's figure of a specimen from Fz. Js. L., in that the 

 striæ at the apices are not radiate, but almost parallel. As the striæ, 

 however, are seen onh' with great difficulty I think my determination may 

 be correct. 



Naviculæ lineolatæ Cl., 1895. 



Navicula ammophila Grun., var. intermedia Grun., CI. Syn., II, 

 30; Grun. D. Øst.— Ung. , Tab. XXX, figs. 71—73 (Nav. ammoph. f. 

 minuta). 



Loc. Off Cape Amelie (Algæ), Danmarks Havn (Algæ), Koldewey Isl. 

 (Algæ). 



Arct. Distr. East Arct. S. 



Navicula Bolleana Grun., Cl. Syn., II, 25; A. S. Atl., Tab. XLVII, 

 fig. 18. 



Loc. Marg. of the Pack-ice. 



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



Navicula Bolleana Grun., var. intermedia Øst., Øst. Mar. D. Østg., 

 431, Tab.V, fig. 5. 



