i Tykkelse, mdtil den opimod den øverste, udvidede Ende 
bliver kun 0,5” tyk, Fig. 1. Den øverste Del af Stok- 
ken er krumbøiet og 1 en Længde af 8”” skedeformet ud- 
videt langs Dorsalfladen, Fig. 1. 2. 3. Denne Udvid- 
ning er bredest, hvor den gaar over i Rachis — 2 til 
3”m — og aftager successivt nedover. Stilkens Sarcosoma 
er temmelig tyndt halvt gjennemsigtigt overalt, naar 
undtages den bulbøse Del, hvor det er tykkere og opakt. 
Paa den øverste, skedeformige Udvidning sees enkelte Zooi- 
der, 
ning paa Midten. 
og 
te 
der staa som smaa, runde Perler med en lille Aab- 
Rachis har baade en Side- og Længdekrumning, er 
6” lang og omtrent 3”” bred. 
Dorsalfladen er næsten plan, temmelig smal og tæt 
besat med Zooider, Fig. 2, a. Ventralfladen stærkt 
hvælvet, danner en Kjøl paa Midten, der er glat, Fig. 3,a, 
er 
og til hver Side et lidet Skraaplan, som er tæt besat med 
Zooider, Fig. 3, b. Sidefladerne, der ere meget smale, 
optages af 2 lancetformige, noget ophøiede Zooidefelter, 
der strække sig op imellem Polyperne, Fig. 2, b, saaledes, 
at der paa hver Side er et Felt imellem 2 Polyper og et 
andet imellem en Polyp og Dorsalfladen. Disse Felter, 
der komme tydeligere frem og forøges 1 Antal, alt eftersom 
Dyret udvikler sig, og Polypernes Antal tiltager, ere vist- 
nok de samme, som Mylius i sin Beskrivelse kalder Bæ- 
gerets lancetformige Blade, og 
hans og Ellis’s Afbildninger. 
som gjenkjendes baade paa 
Rachis bærer 5 Polyper, af hvilke den ene danner 
en fuldstændig Endepolyp, der 
Spids af Rachis, Fig. 2, c. 3, 
paa hver Side, dog nærmere Rygfladen, Fig. 2, d. 3, d, 
udspringer fra den øverste 
c, og af de 4 øvrige udgaa to 
hvorved en udpræget bilateral Symetri kommer tilsyne. 
Endepolypens Krop er 5”” lang og omtr. 2”” bred; Ten- 
taklerne næsten dobbelt saa lange. De 3 Sidepolypers 
Krop er næsten 7”” lang og 2,5” bred; men den 4de har 
samme Størrelse som Endepolypen; Tentaklernes Forhold 
til Kroppen er det samme som hos Endepolypen. —Poly- 
pernes Krop er eylindrisk, glat og har 8 temmelig brede 
Leengdelinier, der antyde Insertionerne for Septa. Ved 
Grunden af Endopolypen, nærmest Dorsalfladen, sees en 
liden, knopformig Forhoining, der er en Polyp i Udvikling, 
Mundskiven er hvælvet, og i dens Midte sees en af-° 
lang Mundspalte, der er forsynet med 8 temmelig tykke, 
lancetformige Leber, som paa Midten af den indre Flade 
have en Fure. 
Axen strækker sig fra Grunden af den bulbøse Del 
til Stokkens øverste Ende. Paa denne Vei indtager den 
Midten af Stokken op imod den øverste, krumbøiede, ske- 
deformig udvidede Del, hvor den nærmer sig saa meget 
Ventralsiden, at det ser ud, som om den gaar ind i selve 
16 
a breadth of 2””:; subsequently, gradually diminishing i 
thickness, until, the thickness towards the superior ex- 
panded extremity becomes reduced to only 0.5"” (fig. 1). 
The superior part of |the stalk is bent, and for about 8”” 
of its length, is dilated in a sheath-form, along the dorsal 
surface (figs. 1. 2. 3). This dilation, is widest, at the 
point where it passes over into the rachis — 2 to 3”” 
wide — and becomes gradually narrower downwards. The 
sarcosoma of the stem is rather thin, and everywhere, 
semi-translucent, except at the bulbous part, where, it is 
thicker and opaque. On the superior sheath-formed dila- 
tion, a few zooids are visible, appearing like small round 
pearls, with a small aperture in the middle. 
The rachis is curved, both longitudinally and later- 
ally; and is 6”” long and about, 3”” broad. 
The dorsal surface is nearly flat; rather narrow, and 
closely beset with zooids (fig. 2, a). The ventral surface 
is sharply arched; and forms a ridge in the middle which is 
smooth (fig. 3, @), and on each of its sides, forms a small 
slope, which is closely beset with zooids (fig. 3, 0). The 
lateral surfaces are very narrow; and are occupied by 
two lancet-formed, somewhat elevated, zooidal areas, which 
extend upwards between the polyps; (fig. 2, 0) so, that on 
each side, there is an area between two polyps, and an- 
other area between a polyp and the dorsal surface. These 
polyp areas become more distinct, and numerous, accord- 
ing as the development of the animal proceeds, and the 
number of polyps increases; and they are no doubt the 
same, that Mylius in his deseription calls; the lancet- 
formed leaves of the chalice, and which may be recognised 
both in his and Ells’ illustrations. 
The rachis carries five polyps; of these, one forms a 
complete terminal polyp which proceeds from the superior 
point of the rachis (figs. 2, c. 3, 0). Of the remaining 
four polyps; two proceed from each side, but closer to the 
dorsal surface; (figs. 2, d. 3, d) giving rise to a distinct 
bilateral symmetry. The body of the terminal polyp is 5”” 
long and about 2”” broad and the tentacles are nearly twice as 
long. The body of the three lateral polyps, is nearly 7” 
long, and 2.5”” broad; but the body of the fourth polyp, is 
of the same size as that of the terminal polyp. The propor- 
tion between the tentacles and the body, is the same as 
in the terminal polyp. The body of the polyps is eylin- 
dric, and smooth, and it has 8 rather broad longitudinal 
lines, denoting the insertions for septa. At the base of 
the terminal polyp; next to the dorsal surface; a small 
knob-formed protuberance is observed; this is a polyp 
in process of development (fig. 2, e). 
| The oral disk is arcuate, and in its middle, there is 
an oblong oral fissure; furnished with 8, rather thick, 
lancet-formed labiæ, which, in the middle of the interior 
surface, have a furrow. 
The axis extends, from the base of the bulbous part, 
to the superior extremity of the stalk. In this course; it 
occupies the middle of the stalk, up towards the superior, 
bent, sheath-formed, dilated part, where, it approaches so 
close to the ventral surface; that it appears, as if it passes 
