59 
occur. The branches are never at right 
Fig. 47. Euantipathes dichotoma (Pall.) n. n. a Spines; 
b polyps; a 52 X 5 b 14 X- 
sinuous, especially near the base, but strong and upright as the first specimen. All branches 
lie nearly in the same plane. The length of the branches is a few mm. to upwards of 3 cm.; their 
mutual distance is 3 mm. Secondary branches of 1 cm 
angles with the supporting branch, but otherwise the 
angle is very variable. The basal diameter (275 p.) shows 
no further increase. — The spines (fig. 47 a) are ar¬ 
ranged in 6 longitudinal rows and a straight quincunx. 
Their shape is triangular and of a heavier build than 
in one of the former specimens. Their mutual distance 
is 300 p. '(270 p. to 330 a, but always the same in 
a special part of the colony, so that the quincunx is 
not shifted). The length of the smooth spines is 65 [x. —- The only subsisting three polyps 
(fig. 47 6) have an intertentacular distance of 1.25 mm. and a tentacular length of 0.35 mm. 
It seems that the proximal lateral 
tentacles are somewhat larger than 
the distal ones; there is hardly any 
oral cone; a part of the polyp (in 
fig. 4 7 b indicated by a dotted line) 
is somewhat thicker and more opaque 
than the rest of the polyp. — The 
spines show through the transparent 
white coenenchyma, but not through 
the polyps. 
From the seven specimens of 
station 250 I will first describe two, 
one of which is unbranched, so that, 
if I were not in the possession of 
branched specimens, I would have described it as a Stichopathes. The unbranched colony is 
3 cm. in length and curved, with a basal diameter of 180 a, diminishing regularly. The branched 
colony has a stem of 4 cm., curved and 
bearing 4 branches on its concave side 
1.5—2.75 cm. in length, not in the same 
plane, and at right angles with the stem 
or at an angle of 75 0 —90°. The basal 
diameter of the stem is 330 p. and - dimi¬ 
nishes regularly. The smooth spines (fig. 
48c) are triangular with their distal side 
at right angles with the axis. Their length is 90 p., subequal on all sides ol the axis; their 
mutual distance is 240 p.; there are 4 longitudinal rows alternating quincunxially; sometimes 
two rows stand on the same or nearly the same level, ihe polyps (figs 48, 49) are very large 
and conspicuous, but their dimensions are very unequal (fig. 48m). I hey are not inserted on 
Fig. 48. Euantipathes dichotoma (Pall.) n. n. a Polyps; b polyp with mesente¬ 
rial filaments visible at the mouth and through the bodywall; c spine; a, b 
14X; * 52 X- 
Fig. 49. Euantipathes dichotoma (Pall.) n. n. b Polyps with visible 
mesenterial filaments (<?); a. b 14 X- 
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