mesenteries is forked as in other species, but the angle between the fork is acute, while this 
mesogloea is not the limit between the entodermal and the ectodermal part (as is usually the 
case) but the actinopharyngeal glandcells are found in a large number on the mesenterial side 
of the fork, while they are less in number between the fork. — The testes are unripe, with a 
central area, lacking nuclei; they are surrounded by a very thin mesogloeal capsule. In all 
other respects the colonies, which I examined, are quite the same as the type of station 204. 
The following table gives the respective numerical data (in p.) for the thickness of the 
layers in the examined colonies. 
Station 
TENTACLES 
BODYWALL 
ORAL CONE 
ACTINOPHARYNX 
MESENT. 
AXIAL LAYERS 
AXIS 
ec 
me 
en 
ec 
me 
en 
ec 
me 
en 
ec 
me 
en 
en 
me 
ec 
me 
en 
wall 
lumen 
64 
l6 
10 
16 
12 
7 
12 
16 
10 
16 
50 
2 
10 
IO 
1-3 
(7-) 16 
1 
4 
4 
56 
79a >) 
IO 
n 
0 
IO 
IO 
3 
7 
13 
6 
7 
30 
i 
7 
3 
1 
10 
1 
10 
l6 
l6 
164 
35 
60 
? 
14? 
30 
p 
15 
33 
13? 
70 
5 
5 
p 
7 
193 
24 
4 
16 
7 
3-4 
7 
7 
3 
7 
30 
1 
5 
5 
i 
( 5-)8 
1 
5 
3-5 
50 
204 
35 
8-15 
20 
I 2 
5 
5 
16 
7 
7 
33 
3 
4 
3 
2 
( 2-)9 
1 
4 
7-40 
33-50 
213 
24 
4 
16 
7 
3-4 
7 
7 
3 
7 
30 
1 
5 
5 
1 
( 5-)8 
1 
5 
3-5 
50 
250 -) 
40 
IO 
30 
20 
4 
10 
20 
3 
7 
33 
1 
6 
4 
2 
4 
1 
4 
33 
90 
257 
27 
3 
16 
O 
M 
1 
4-7 
7-10 
23 
8 
7 
27 
1 
7 
5 
2 
( 3 -) ro 
1 
3-5 
23 
43 
313 
24 
4 
16 
7 
3-4 
7 
7 
3 
7 
30 
1 
5 
5 
1 
( 5-)8 
1 
5 
3-5 
50 
It is evident from this tabel that these data are extremely variable. 
14. Euantipathes plana (F. Cooper). 
The state of preservation, especially of the ectoderm, is rather bad; the axis having been 
broken off in the sections, almost all the sections are disruptured and incomplete. Generally 
the mesogloea is very large. We can state the following data only: 
Tentacles. The ectoderm contains nematocyst-batteries, surrounded by deeply staining 
glandcells. The mesogloea (20 p.) is a homogeneous layer with circular ridges at the ento¬ 
dermal side. Now and again there are very dense fibrillar bundles. — The entoderm (12 p.) 
has no deeply staining glandcells. 
Bodywall. The dimensions are uncertain; the mesogloea is very thick; deeply staining 
glandcells are visible here and there. 
<_> 
The oral cone has a mesogloea of iop. or irregular in thickness, and an entocl erm of 6 [x. 
The axis has a wall of 80 p. with a lumen-diameter of only 20a! The spines are 75 p,; 
they lift the bodywall and they project very far into the polyps, i. a. almost reaching the top 
of the tentacular lumen. 
Actinopharynx. The ectoderm (20 p.) has a great number of actinopharyngeal gland- 
1) And 5 spec, from Ivur (p. 60). 
2) Both type-specimens of p. 59. 
