43 
irregular intervals; principally there are two rows, almost in one plane although the bases of 
the branches are not inserted accurately laterally but antero-laterally on the stem. Their length 
is very variable, but the shorter ones sit in the lower part of the colony. All branches are 
inserted at right angles with the stem or somewhat distally inclined. — The secondary branches 
almost lie (in a not very limited sense) in the principal plane of the colony, although they are 
inserted again antero-laterally, at right angles or distally inclined. Their mutual distance varies 
from a few mm. to i cm. There are also branches of the third and the fourth order. The 
branches of the second order have a variable length of max. 2 cm., those of the third order 
up to 1 cm., those of the fourth order 
up to 3 mm. — On the front of the 
colony the stem and the branches also 
bear some branchlets which are directed 
forwards and which are as long as 
branches of the fourth order. The 
branches of higher order are spine¬ 
shaped through a swift diminishing of 
their diameter. 
The spines (fig. 15) are arrang¬ 
ed in 5 (—6) longitudinal rows, which 
alternate in a quincunx. The length of 
the spines is 165 u. and 120 [x on 
opposite sides of the axis, and their 
mutual distance is 270 [x. Their sur¬ 
face is almost smooth or finely granu¬ 
lated by a few scattered little knobs. 
On the stem the spines are inserted 
irregularly in a very great number. 
They perforate everywhere the rather 
thick coenenchyma (figs. 15 b and 16); in sporadic places they also perforate the polyps (fig. 16: 
the sagittal tentacle of the polyp on the middle of the horizontal branch). The spines are distally 
inclined and their base is long and laterally 
compressed. 
The polyps (figs. 15^, £, d and 16) are in¬ 
serted on the front of the colony, in a single series 
on the branches of higher order, which is not so 
obvious on the thicker branches, where they are 
not so crowded either. The interpolypar distance is 
1.2 mm.; the length of the tentacles is o. 1 — 0.15 mm.; 
the diameter of the oral cone is 0.13—0.2 mm. 
The tentacles are low, knobby and rounded; the 
oral cone is also low but very broad. I he sagittal tentacles are inserted at a lower level than 
Fig. 15. Euantipathes myriophylla (Pall.) n. n. a Spines on ultimate branch; 
b polyps; the first pinnula, between the 2 nd and 3 rd polyp is seen end on; 
c spots on a tentacle; d oral cone in oral aspect; rt, r, d 5S.5 X; b 15-75 X* 
Fig. 16. Euantipathes myriophylla (Pall.) n. n. a Polyps; 
b. coenenchyma with spots and spine-tops ; a 21 b yS X- 
