VEGA-EXPEDITION ENS V ET EN S K A I'LI G A ARBETEN. 



485 



Striatella unipunctata (Lyngb.) Sm. (Syn. II, pag. 37, PI. 

 XXXIX, fig. 307) Finm. 



St. chilensis Grun. (Nov. pag. 96, PL I A., fig. 7) Greenl. 



Only one frustle has been observed, so that it may be 

 doubtful as an arctic species. 



St. delicatula Kiitz. var. rectangida Kiitz. (Van Heurck Syn. 

 PL LIV, fig. 3) Greenl., BesseLs Bay. 



15. Licmophoreae. 



Licmopliora yrandis (Kiitz.) Grun. (Van Heurck Syn. PL 

 XLVIII, fig. 2) Spitsb. (Hackluyts) Stri^ at the base 22 in 

 0,01, at the top 24 in 0,oi mm. Length 0,ii mm. Breadth 

 0,027 mm. 



L. Jurgensii (Kiitz.) Grun. (Van Heurck Syn. PL XLVI, 

 lig. 10 — 11) Greenl. (Bessel's Bay) Kara. 



var. finmarchica Grun. (A. Diat. pag. 110, PL VII, lig. 125) 

 Finm. 



L. borealis (Kiitz) Grun. — Kara (sec. Grun.). 



L. nuhecuta (Kiitz) Grun. — Kara (sec. Grun.). 



L. flahellata Ekb. forma brevior — Finm. (sec. Grun.). 



L. elongata (Kiitz) Grun. — This species has been indicated 

 by myself as occurring in Finmarken, but I have some doubts 

 about the correctness of the determination. 



16. Biddulphieae. 



Tr icerathi m, B iddidph la . 



B. aurita (Lyngb.) Breb. (Sm. Syn. II, pag. 49, PL XLV, 

 iig. 319) Greenl. (Bessel's Bay, Mushroom Point), Finm., Spitsb., 

 Kara (Matotschkin), Cape Wankarema. 



B. Bhomhus Ehb. (Sm. Syn. II, pag. 49, PL XLV, tig. 320) 

 Finm. 



B. BalcBiia (Ehb.) BtAv. (M. J. VII, pag. 18, PL IX, tig. 15. 

 Zygoceros radiatus Bail. Smith's Contr. VII, PL II, fig. 29. Tri- 

 ceratium arcticum Btw. 1. c. triangular form) Greenl. (Bessel's 

 Bay), Finm., Spitsb., Kara. 



var. T. spitsbergense Grun. (A. Diat. pag. Ill) Spitsb. 



T. jinmarchicmn Grun. (A. Diat. pag. 112, PL VII, fig. 

 126) Finm. 



