6o 
a special side of the colony, but always in a single series, except on the base of the branched 
colony, where a few irregularities occur. The intertentacular distance is 1.25—1.5 mm.; young 
polyps are interpolated between the adult ones, but without alternating regularly. The distal 
pair of lateral tentacles is much shorter than the proximal ones ; the distal ones are 0.4 mm. 
in length, the proximal ones 0.65 mm., the sagittal ones 0.75 mm. or in all demensions larger 
or smaller in the same proportion. The oral cone is very large and swollen with a rounded 
mouth, which in one case I found sagittally elongated (fig. 48*2). The entire surface of the 
polyps and the coenenchyma is covered with warts. — The mesenterial filaments are so blackened 
by darkbrown pigment as to be clearly visible in all polyps, especially in the unbranched 
colony (figs. 48c, 49). Sometimes they form a black mass, filling the entire polyp, even the 
tentacular lumen, and in fig. 48*? is shown how they may be visible in the oral orifice. On 
the unbranched colony the polyps have the same shape (fig. 49^), but after a transition zone 
the shape of fig. 49 a appears, which is more in accordance with the polyps of the other 
5 specimens. Both colonies are much stronger than the specimens of the preceding stations; the 
specimens of station 204 and 302 form a transition towards the more slender specimens. 
The other 5 specimens of station Kur have the same structure as the specimen of the 
following station 79 a, except that the branching takes place in all directions and that the 
polyps are a little slimmer, while the oral cone is better developed, with a small round mouth. 
The specimen of station 79 a is branched in a plane, and all its branches are at right 
angles with the stem, on irregular distances one from the other. They are curved and sinuous, 
thin and elongate (3 — 8 cm.). The secondary branches, also at right angles, are 1—7 cm. in 
length, according to the length of the branch which bears them. They spread in every direction, 
and are slender and curved; their mutual distance is very variable, but there are only 2 or 3 
on a single branch. Some tertiary branches occur. The spines (fig. 50) are at right angles with 
K A A _ 
-LC. 
\T 
V 
-tx- 
"V" 
Fig. 50. Enantipatlies dichotoma (Pall.) n.n. 
Spines: 52 X- 
the axis; usually the distal side is steeper than the proximal 
side. There are 4 longit. rows and a quincunx. Sometimes the 
spines are doubled, that is to say two spines are very close 
together, neither of them on the exact place of the spine they 
represent. The surface of the spines is smooth; length 60 p, subequal 
on all sides of the axis; mutual distance 285 p. The polyps (figs 51, 
52) are placed in a single series but not on a special side of the colony. They are very transparent; 
as white warts they are visible on the 
axis. Their intertentacular distance is 
±1.5 mm. All tentacles are subequal 
in length viz. 450 p. However there 
are polyps the proximal lateral tentacles 
of which predominate, but quite near there 
are also polyps the distal lateral tentacles 
of which predominate! The sagittal ten- 
Fig. 51. Euantipathes dichotoma (Pall.) n.n. Polyps; 14 X- tacles are inserted at a lower level than 
the lateral ones. The oral cone is low; the mouth is not well visible. Between the polyps a 
