og omtrent af samme Bredde som Dorsalfladen, Fig. 20%, a. 
Lader man denne gaa i et med Sidefladerne, saa faar man 
et trekantet Spatium (tresidigt Prisma), hvorfra de 13 ud- 
viklede Polyper tage deres Udspring, Fig. 16. 
Terminalpolypen udgaar fra Enden af Rachis, dog 
nærmere Dorsalfladen. Dens Krop er 127” lang, 47” bred; 
Malden 2522 kne, 955 185, då 1868, 16, 17 Dil, å 
Omtrent 3”” fra Endepolypen, men midt paa Dorsalfladen, 
staar en Polyp, hvis Krop er 15”” lang, 3”” bred, Ten- 
taklerne 20”” lange, Fig. 21, b; i en lignende Afstand fra 
denne udspringer ligeledes midt paa Rygfladen en Polyp, 
der er 18”” Jang, 147” bred, med 16”” lange Tentakler, Fig. 
21, c. Disse 3 Polyper indtage i en lidt paaskraas opad- 
gaaende Linie Midtpartiet af Rachis, saaledes at Endepo- 
lypen staar høiest, Fig. 16, 1. Imellem Endepolypen og 
den midterste af de 3 nysbeskrevne Polyper, iagttages paa 
hver Side 2 Polyper, hvis Krop er 16”” lang, 4”” bred, 
med 16—18”” lange Tentakler (dorsal-laterale Polyper), 
Fig, 16, 2,2. 21, d,d. Udenom disse Polyper, eller ret- 
tere til hver Side men noget nedenfor, udspringe 3 Poly- 
per (laterale Polyper), der ere 30”” lange, 6”” brede, Ten- 
taklerne 45”” lange, Fig. 16, 3,3,3. 21, e,e,e. Imellem 
Endepolypen og en af de mindre Polyper til Høire sees 
en konisk Fremstaaenhed med en liden Aabning paa Spid- 
sen (en begyndende Polyp). Polyperne indtage her en 
temmelig fremtrædende bilateral symetrisk Stilling paa Ra- 
chis, hvilket alene efter Habitus at domme ikke synes at 
være Tilfældet; thi Polypgruppen, der er hængende paa 
Stilken, har Udseende af en rund Dusk, Fig. 20. Det er 
først, naar Polyperne omhyggelig lægges ud fra hverandre, 
at Symetrien kommer ret tilsyne. Terminalpolypen med 
de to nedenfor denne, men 1 lige Linie staaende Polyper, 
danner Dorsalfladens Centrum; lidt til hver Side 
men endnu paa Dorfladen, vise sig 2 Polyper, og fra hver 
af de laterale Sider udspringe 3 store Polyper, der ganske 
skjule de 5 indre Polyper fra Siderne, imedens disse mod 
af disse, 
Dorsal- og Ventralfladen skjules af Endepolypen og den 
diametral modsatte Dorsalpolyp. Her er altsaa, om man 
saa vil, en ydre og indre Række Polyper paa hver Side af 
de 3 centrale Polyper, Fig. 16. 
Polyperne ere cylindriske, næsten lige tykke overalt, 
— dog ere de ved deres Udspring noget smalere end 
paa Midten, ligesom den øverste Del mod Tentakelranden 
er lidt udvidet. Paa Kroppens ydre Flade sees 8 brungule 
Længdelinier, der antyde Insertionerne for de 8 Septa, 
Fig. 20% Tentaklerne ere cylindriske, lidt fladtrykte paa 
den nederste Halvdel af den adorale Flade, og paa hver 
2 
9) 
out over the lateral surfaces; these are almost flat, and 
have a breadth, about the same as that of the dorsal sur- 
face (Pl. VII, fig. 207, a). If the dorsal surface is contin- 
ued into the lateral surfaces, we obtain a triangular spat- 
ium (trilateral prism), in which the 13 developed polyps 
have their origin (Pl. VI, fig. 16). 
The terminal polyp proceeds from the extremity of 
the rachis, but closer to the dorsal surface. The body is 
12”” long, and 4”” broad and the tentacles are 25”” long 
(AG WIE ties, 18, Gh 16, 1 IPL VII, ste, Bil, @), Avon 
3”” from the terminal polyp; but in the middle of the 
dorsal surface; a polyp is situated, whose body is 15” 
long, and 3”” broad, and the tentacles are 20”” long (PI. 
VII. fig. 21, 6). At a similar distance from that polyp; 
and, also, in the middle of the dorsal surface; another 
polyp oceurs, which is 18”” long, and 14"” broad, and it 
has tentacles 16”” long (Pl. VII, fig. 21, ¢). 
polyps, occupy, in a slightly diagonal rising line, the mes- 
These three 
ial part of the rachis, in such manner, that the terminal 
polyp is situated uppermost (Pl. VI, fig. 16, 1). Between 
the terminal polyp and the central one of the three polyps 
just described, two polyps are observed on each side. 
Their body has a length of 16””, and a breadth of 4””, 
and the tentacles have a length of 16—18”” (dorso-lateral 
polyps) (BIE VI tes 165 PEPE Ve ted JO Out= 
side these polyps, or more correctly, upon each side, but 
somewhat lower, 3 polyps proceed (lateral polyps). These 
are 30”” long, and 6”” broad, with tentacles 45”” long 
GAL WA, ies, 1G, 8 9 8 IPL VING we, Dil, @ @ @) 186 
tween the terminal polyp and one of the smaller polyps 
on the right, a small conical protuberance is seen, which 
has a small aperture at the point (an embryonal polyp). 
The polyps, in this situation, assume a rather marked bi- 
lateral arrangement on the rachis, which, however, would 
not appear to be the case, if judged only by the habit; 
because, the groups of polyps. depending, from the stem 
have the appearance of a round tassel (Pl. VII, fig. 20). 
It is, only, when the polyps are carefully separated apart 
from each other, that the bilateral symmetry can properly 
be observed. The terminal polyp, with the 2 polyps which 
stand in a straight line below it, form the centre of the 
dorsal surface. A little to each side of these; but still 
on the dorsal surface; 2 polyps appear; and from each of 
the lateral margins, 3 large polyps proceed, completely con- 
cealing the 5 inner polyps from the sides, whilst, those 
towards the dorsal and ventral surface, are concealed by 
the terminal polyp, and the diametrically opposite dorsal 
polyp. There is therefore, here, if we like to call it so, 
an outer and an inner series of polyps, on each side of 
the 3 central polyps (Pl. VI, fig. 16). 
The polyps are cylindric; and are, nearly every- 
where, of the same thickness; but, at their origin, they 
are somewhat narrower than in the middle; whilst, also, 
the upper part, toward the tentacular margin, is a little 
expanded. On the exterior surface of the body, 8 brownish- 
yellow, longitudinal lines are seen, denoting the insertions 
of the 8 septa (Pl. VIL, fig. 207). The tentacles are 
