Full resolution (JPEG) - On this page / på denna sida - Sidor ...
<< prev. page << föreg. sida << >> nästa sida >> next page >>
Below is the raw OCR text
from the above scanned image.
Do you see an error? Proofread the page now!
Här nedan syns maskintolkade texten från faksimilbilden ovan.
Ser du något fel? Korrekturläs sidan nu!
This page has never been proofread. / Denna sida har aldrig korrekturlästs.
var. minor Grun. (A. Diat. pag. 28, Pl. I, fig. 12) Finm.
N. cruciformis Donk. (Brit. Diat. Pl. X, fig. 4) Finm.
var. brevior Cl. — Length 0,035 mm. Br. 0,oo9 mm. Str. 14
in 0,oi mm. Cape Deschnew (East Cape). — Pl. 35, fig. 18.
* Thcelii Cl. (A. Diat. pag. 13, Pl. I, fig. 22) Kara, Cap%e
Deschnew (East Cape). Specimens from Cape Deschnew (East
Cape) have tlie length 0,os mm. and the br. 0,ois mm. Striae
12 in 0,oi mm. In the Cape Deschnew (East Cape) material
occur some specimens, which seem to connect N. Théelii
with N. Pinnularia.
N. decurrens (Ehb.) Grun. In tlie Cape Deschnew (East Cape)
gathering occurs a Navicula, which Grunow refers to N.
decurrens. It has about 11 costate and radiant striae in 0,oi mm.,
which do not reacli tlie median line. Length 0,o6 mm. Breadth
0,oi3 mm. The valve is linear with gibbous middle and rounded
obtuse ends. Median line is sliglitly undulating. In some
specimens the striae are absent in the middle of the valve, in
which case the forni seems to be closelv allied with Nav. cru-
tJ
ciformis althougli the latter lias the striae reaching to the
me-dian line. On the other side it seems also akin to Nav.
bica-pitata Ldt. — Pl. 36, fig. 20.
N. globiceps var. crassior Grun. (A. Diat. pag. 27, Pl. I, fig.
13) Kara (fresh-water species?).
N. megastauros Cl. — Small, elliptic, probably depressed in
the middle. Striae costate, oblique, reaching tlie median line,
except in the middle, wliere they are verv sliort or marginal,
so that the central nodule is surrounded bv a large stauros.
Striae 16 in 0,oi mm. Length 0,02 mm. Breadth 0,oos mm.
Cape Deschnew (East Cape). — Pl. 36, fig. 19.
Sectio: Lini os ce.
N. ventricosa (Ehb.?) Donk var. subundidata Grun. (A. Diat.
pag. 29, Pl. I, fig. 16) Kara.
var. KjeUmaniana Cl. (A. Diat. pag. 29, Pl. I, fig. 17) Finm.
N. subrentricosa Grun. (A. Diat. pag. 29, Pl. I, fig. 19) Kara.
N. libet’ W. Sm. (A. S. Atl. Pl. L, fig. 16—18) Greenl.,
Finm.
•5
var. elongata Grun. (N. elongata Grun. A. S. Atl. Pl. L,
fig. 27—29).
N. ScopulorumBvéb.— Cape Deschnew (East Cape); a large
specimen, 0,n mm. in length, 0,oi mm. in breadth; striae 23 inO,oi mm.
Sectio: Quadriseriatce.
N. snbdivisa Grun. (A. Diat, pag. 29, Pl. I, fig. 20) Greenl.,
Mushroom Point, Kara, Cape Deschnew (East Cape).
<< prev. page << föreg. sida << >> nästa sida >> next page >>
