i55 
2.5 mm. remains subequal till at a distance of 4 cm. from the top, where a swift diminuition 
ot the diameter takes place from 2.5 mm. to 0.75 mm. Afterwards the axis gradually tapers 
towaids the almost complete top. I he spines (fig. 209) are very blunt and conical, at right 
angles with the axis and of a very heavy built, d hey are 300 >j. and 45 p. on opposite sides 
tig. 209. Eucii ripathes translucens v. Pesch. Spines Fig. 210. Eucirripath.es translucens v. Pesch. 
on the basal half of the colony; 58.5 X- Spines on the toppart of the colony (not out 
of the same row); 58.5 X- 
of the axis; sometimes the shortest spines have almost disappeared so that one side of the axis 
is almost smooth, Their mutual distance is 825 — 900 p.; the ± 9 longitudinal rows alternate in 
a straight quincunx; the surface of the darkbrown spines is smooth. The thinner part of the axis 
has spines (fig. 210), which are more slender and not always at right angles with the axis. Their 
surface is slightly granulated at the top. Here their distribution is not very regular. The polyps 
(figs. 211 and 212) are not everywhere in a good state of preservation. 
On the basal part there are only a few, which are damaged besides ; 
the top-part is entirely covered with polyps. The coenenchyma shows 
numerous cross-grooves. I he Eucirripathes -character is very obvious; 
on the top-part at least 2 rows of polyps may be distinguished ; the 
short-spined side of the axis is entirely left open by the polyps. — 
I he tentacles are lying against each other, covering the oral cone and 
the mouth, and they are distally directed in a group; they are very 
transparent. The sagittal tentacles, 1.4 mm. long, are situated at a 
greater distance from the oral cone than the lateral 
ones, which are somewhat shorter than or of equal 
length as the sagittal tentacles. The very great 
transparency of the polyps makes it difficult to 
distinguish the parts of the polyps from one an¬ 
other. The oral cone is invisible, like the mouth. The 
microscopical examination shows an oral cone with a sagittally elongated 
mouth. The interpolypar distance is ± 1.5 mm. Young polyps are sown 
among the adult ones. On the higher part of the colony (fig. 211) the 
polyps are arranged irregularly, but always on one side of the axis; there 
are no longitudinal rows to be seen, while the interpolypar distance is very variable. On a 
higher part many smaller, young polyps are found. The coenenchyma is very thin, so that it 
is perforated by the spines. 
Fig. 211. Eucirripathes trans¬ 
lucens v. Pesch. Polyps on the 
top-part of the colony, with spi¬ 
nes and cross-grooves omitted; 
1.2.5 X- 
Fig. 212. Eucirripathes trans¬ 
lucens v. Pesch. Polyps on the 
base of the colony; 8.5 X- 
Diagnosis 
Colony : 
unbranched. 
irregularly curved, with swift diminuitions of the diameter; 
