484 CLEVE^ DIATOMS. 



A. S. is somewhat incorrect. The striae are pervious as in 

 Grunow's delineation. 



F. islandica Grun. (Van Heurck Syn. PI. XLV, fig. 37) 

 Jan May en. 



var. liyperhorea CI. — Area longer, striae 12 in 0,oi mm. — 

 Greenl., Bessel's Bay. 



F.? Cylindrns Grun. Mpt. -^ Small, linear with parallel sides 

 and broadly rounded ends. Striae pervious 14 — 21 in 0,oi mm. 

 Length 0,o35 — 0,o6 mm. Breadth 0,oo2 — 0,oo4 mm. — PI. 37, fig. 

 64 a. b. c. — Greenl., Tindingen, F. J. L., Cape Wanker ema. 



Grammonema striatuhnn Ag. (Sm. Syn. II, pag. 23, PI. XXXV, 

 fig. 298) Greenl., Finm., Spitsb. 



13. Meridioneae. 



Asterionella Jcarimia Grun. (A. Diat. pag. 110, PI. VI, fig. 

 121) Kara. 



14. Tabellarieae. 



Grammatophora oceamca (Ehb.) Grun. (G. macilenta W. Sm.) 

 Greenl. 



G. arctica CI. (ofvers. K. Sv. V. Ak. Forh. 1867, pag. 664, 

 PL XXIII, fig. 1. Van Heurck Syn. LIII B., fig. 3) Greenl. 

 (Bessel's Bay, Assistance Bay etc.), Finm., Spitsb., Kara (Ma- 

 totschkin). 



G. arcuata Ehb. (Grun. Verb. 1862, pag. 420, PI. XI, fig. 

 7) var. arctica Grun. (Bot. Centr. Bl. 1881^, Bd VII, pag. 3) 

 Greenl., Spitsb., Kara (Matotschkin), East Cape. 



G. angidosa var. islandica (Ehb.) Grun. (Van Heurck Syn. PI. 

 LIII, fig. 7) Greenl. (Bessel's Bay), Finm., Spitsb., Kara (Ma- 

 totschkin). 



Bhahdonema ToreUli CI. (D. of the A. Sea pag. 24, PI. IV, 

 fig. 20) Greenl. (BesseFs Bav), Spitsb. 



li. arcuatmn (Lyngb.) (W. Sm. Syn. II, pag. 34, PL XXXVIII, 

 fig. 305) Greenl. (Bessel's Bay), Finm., Spitsb., Kara (Matot- 

 schkin), Cape DeschncAv (East Cape). 



B. mimdiim (Kg.) (Sm. Syn. II, pag. 35, PL XXXVIII, fig. 

 306) Greenl., Finm., Spitsb., Kara (Matotschkin). 



The Bli. adiaticum (Kg.) has been found once in a sample 

 from Grotsund in Finmarken, but in no other arctic gathering. 



