170 
(and m). Arrangement of the quartettes MBmb with tendency to 
mBMb or in some case to mBMb. Metamesenteries M and m 
diminishing or sometimes in the oldest quartettes increasing in 
length towards the multiplication chamber, the oldest or some of the 
oldest reaching to the aboral end. Little difference between M and m. 
Free part of the metamesenteries B and b as a rule somewhat longer 
than the actinopharynx. Little difference in length between B and 
b in each quartette. Protomesenteries 3 (pa) as long as the oldest 
B. Ciliated tract region of pa, M and m about as long as the 
actinopharynx, their cnidoglandular tract short, their craspedion 
region very long, reaching almost to the aboral end of the mesen- 
teries Ciliated tract of pa, B and b considerably shorter than that 
of pa, M and m shortest in b. Cnidoglandular tract very long rn 
b, shorter in pa and B. No craspedion region in pa, B and b. 
• A single, very long craspedoneme of the ciliated tract in all me- 
senteries,’ except in the directives, next to the cnidoglandular tract. 
Structure of the ciliated tract in the uppermost part of the mesent- 
eries according to type 3, more proximally according to type 2 and 
3 next to the cnidoglandular tract. 
Colour in alcohol: Column gray-brown or grayish. Marginal 
tentacles brown. The outside of the labial tentacles with a longi¬ 
tudinal brown line, their inside and the actinopharynx faint brown- 
yellowish, oral disc brown (3 specimens). Column gray shading off 
into brown. Marginal tentacles, oral disc and labial tentacles brown, 
the latter somewhat paler on the inside, actinopharynx brown-yel- 
lowish (1 specimen). Column gray. Outer marginal tentacles wholly 
or partly brown, inner tentacles yellowish, oral disc of the same 
colour, labial tentacles brown, actinopharynx pale (1 specimen). 
Column gray, marginal tentacles, oral disc, and actinopharynx yel- 
quartette. M 2 : metamesentery of the First cycle in the second quartette 
etc. (Compare Carl gr en Ceriantharia of the Ingolf Expedition, Copen- 
hagen 1912 and Ober Ceriantharia des Mittelnieeres. Muh. Zool. btat. 
Neapel 20. 1912, van Beneden Die Anthozoa. Ergebnisse Plankton 
Exp. der Humboldt Stiftung 2. 1898). 'Besides, I have in the flgures ma e 
use of the following signs of abbreviation c: craspedion region, cc: cras¬ 
pedoneme of the ciliated tract, cn: cnidoglandular tract, cs. ciliated tract, 
liv: hyposulcus, mt: marginal tentacles, It: labial tentacles, si. siphono 
glyph, a: acontoids. The transverse line at the bottom of the figures , 
2 4, 6 7, 8, 9—11, 14 — 16 signifies the aboral end of the body. 
