267 



Var. dichotoma Kiitz., V. H. 1. c, figs. 30— 31. 

 Orneljæld (Sydero). Plankton. 



66. G. gracile Ehr. var. naviculacea W. Sm., V.H. Syn. tab. XXIV, 

 figs. 13—14. 



Not rare. 



67. G. lanceolatum Ehr. var. insignis Greg., V. H. Syn. tab. 

 XXIV, tig. 39. 



Hojefjæld (Bord 6). 



Var. brevistriata m. Fig. 33 ^^^/i. 



L. 0,038 mm., B. 0,008 mm. Striæ 10 in 0,01 mm. 



By an interruption of the striæ a rather broad apical 

 area is formed, dilated in the middle of the valve to a round 

 space. Tilis variety approaches nearest to G. lanceolatum 

 insignis. 



Found in a gathering labelled: »Trangisvaag (Sydero) at Fig. 33. 

 some 200 metres«. 



68. G. subclavatum Grun., V. H. Syn. tab. XXIV, fig. 1 and tab. 

 XXIII, figs. 38—41. 



Var. montana Schum., V. H. Syn. tab. XXIII, lig. 36. 



Not rare. The variety occurs intermingled with the main species. 



69. G. acuminata Ehr. var. coronata Ehr., V. H. Syn. tab. XXIII, 



figs. 15—17. 



Rather common, but generally does not occur in any considerable 

 quantity in any of the gatherings. 



70. G. constrictum Ehr., V. H. Syn. tab. XXIII, figs. 5—6. 



Tværaa (^Sydero); Næs (Oster6)i Vedvig (Videro). Common in a 

 gathering from the latter locality. 



71. G. geminatum Lyngb., W. Sm. Syn. tab. XXVII, fig. 235. 



Here and there. Occurs in large quantity in a gathering labelled: 

 »Trangisvaag (Sydero), at the northern Hammer«. 



72. G. olivaceum Lyngb., V.H. Syn. tab. XXV, figs. 20— 21. 

 Trangisvaag, Tværaa (Sj^dero); Nord reder. 



73. G.? inflatum m. Fig. 34 ^''Vi. 



L. 0,031 mm., B. in the middle 0,006 mm. Striæ 15 in 

 0,01 mm. 



Valve slightly undulated, broadest in the middle. Nar- 

 row apical area. Central area orbicular, reaching half way 

 between the central nodule and the margin. Striæ more distant, 

 slightly radiant in the middle, but at the dorsal end of the Fig. 34. 



