56 
Fig. 36. Euantipathes 
die ho to ma (Pall.) n. n. 
Polyp; 14 X- 
Fig. 37. Euantipathes dichotoma (Pall.) n. n. 
a Polyp with a mesenterial filament (enlarged 
in b to show the pigmentation) projecting 
through the mouth; a 15.75 X- 
t> 
X 
between the distal and proximal pair of lateral tentacles is not very conspicuous. The oral 
cone has concave sides (fig. 36). The intertentacular distance is 0.75 — 2 mm., usually 1.5 mm. 
In one case I saw a pigmentated thread (fig. 37^) come from the mouth 
of a polyp (fig. 37a); possibly this is a mesenterial filament projected (by 
accident ?) through the mouth. 
The colony of station 47 is also very thin and slender; the basal 
diameter of 135 p increases to 225 p after 8 cm. The stem is curved in 
a half circle. The branches (length: till 9 cm.) are inserted at angles of 35 0 or 45 0 , often 
curved in an opposite direction as the branch of lower order; 
they are inserted on a mutual distance of some cm. No polyps. 
The spines have the type of the young spines of station 193 
(fig. 34^), but with a longer top. Length 50 p; distance 345 p. 
Five longitudinal rows and a straight or somewhat slanting 
quincunx. In other respects they are the same as in other stations. 
Both specimens of station 313 are very slender and 
thin for the stem of 8 cm. has a basal diameter of 165 p, 
which diminishes regularly; the branches are curved in half circles. One colony has a single 
branch of 6.5 cm. at an angle of 6o°, and the other colony has a single branch 
of 10.5 cm., at an angle of 30°. The diameter of the second colony increases 
from 105 p to 150 p. before diminishing. — The spines are arranged in 5 (—6) 
longitudinal rows (fig. 38), alternating in a straight quincunx. Length 35 p; their 
mutual distance is very variable: on the branches 225 p to 300 p, on the stem 
270 p to 360 p. The polyps (fig. 39) are inserted in a single series, but not on 
a special side of the colony, with an intertentacular distance of 1.25 mm. As young 
polyps (fig. 39#, to the left) alternate rather regularly with the adult ones, the mutual 
distance is, seen with the naked eye, larger, as much as 2.5 mm. The proximal 
lateral tentacles are somewhat larger than the distal ones (fig. 39# and b). Trans¬ 
versal grooves between the polyps as well as the longitudinal groove, especially 
on the top of stem and branches, are visible. The oral cone has concave sides 
(fig. 40), the mouth (fig. 39^) is small and rounded (diameter: 60 p). The parasitic bubbles occur 
here also; in fig. 39# the adult polyp has a little bubble (in¬ 
dicated by a dotted line), to the right in the coenenchyma. 
One of the two specimens of Saleyer has a curved 
stem, 15 cm. long, with a branch, near the base, at 
right angles with it, and after 2.5 cm. a second branch 
at an angle of 30°. Both branches are 1 cm. long. The 
other specimen, as slender and thin as the first, has 
a curved stem of 18 cm. and its branches, which are 
inserted by preference on the concave side of the axis, at 
angles of 45 0 or somewhat less, are curved in their further 
course towards the stem. The secondary branches have the same characteristics. The length of the 
4 
Fig. 38. Euantipathes 
dichotoma (Pall.) n. n. 
Spines; 52 X- 
Fig. 39. Euantipathes dichotoma (Pall.) n. n. 
a, c Polyps; the arrow in a indicates the direc¬ 
tion towards the top of the branch; the polyp a 
has a transparent parasitic bubble to the right 
in the coenenchyma; a, < 5 , c 14 X- 
