160 
Simmons, Remarks about the Relations of tlie Eloras etc. 
As it is rather troublesome to see of the table I how many 
species are found in each district, the following summary must 
be made: 
Table II. 
Districts 
Phaeo- 
phyceae 
Rhodo- 
phyceae 
Total 
Asiatic Polar Sea 
18 (19) 
19 (20) 
37 (39) 
American — — 
21 (22) 
22 (23) 
43 (45) 
West coast of Greenland 
67 
46 (47) 
113 (114) 
Spitzbergen province (togetlier) 
58 (61) 
59 
117 (120) 
Tkereof only in East Greenland 
17 
16 
33 
— — — Spitzbergen 
1(2) 
7 
8(9) 
— — — tbe Murman and White Sea 
5(6) 
9 
14 (15) 
— — — E. Greenl. and Spitzb. 
2 
0 
2 
— Murin, a. Wh. S. 
7 
1 
8 
— — Spitzberg. — — 
3 
8 
11 
East Greenland (total) 
49 (50) 
35 
84 (85) 
— Spitzbergen — 
29 (31) 
33 
62 (64) 
Murman a. White Sea (total) 
38 (40) 
36 
74 (76) 
The two sets of numbers are due to the entering in table I 
of some species, whiche have only with doubt been accepted as 
citizens of the arctic regions or some part of tliem. They are 
marked in the table by a I will have to come back to 
some of them at least later. 
Among the districts that of Spitzbergen shows the greatest 
number of species. This must be due in part to favourable con- 
ditions of life, which have made it possible for a number of at- 
lantic algae to enter the eastern portion of it. The warm wa- 
ters of the Gulfstream must be the principal factor in so brin- 
ging up the number for the Murman and AVhite Sea and also 
for Spitzbergen. On the other hand the careful exploration ef- 
fected in the latter country by the swedish expeditions and in 
the first named part by russian, swedish and other investi- 
gators plays a great part. As for east Greenland it must prin- 
cipally be the diligent work of danish and other explorers that 
has brought up the number so far as 84. Next in number 
comes the coast of Danish Greenland, which although the smal- 
lest of the four districts has still not less than 113 species. 
Even if favourable conditions take a part in this result it is 
mostly due to the assiduous work of the danish investigators 
