Tab. X, Fig.46. 
nederste Ende; d, Gastralfilamenter; e, 
(yenerationsorganer. 
Entodermeeller fra Polypkroppens indre 
Flade. a, klare Celler; 0, pigmen- 
terte do. 
Den øverste Del af den skedeformige 
Udvidning samt Rachis med Polyper, 
naturlig Størrelse. En Polyp, aabnet 
efter Længden. a, Svælg; b,c, Septu- 
lum; d,e, Gastralfilamenter; jf, Gene- 
rationsorganer. 
En Bindevævspyramide med Hpithelbe- 
klædning fra Svælgets indre Flade, stærkt 
forstørret. a, røde Pigmentkorn 1 Cel- 
len; b, encellet Kjertel. 
Nederste Ende af Svælget med et Sep- 
tulum samt et Gastralfilament, forstør- 
ret. a, Længdemuskler paa Septulum; 
b, Bindevævsmembran, hvormed Gastral- 
filamentet er fæstet til Septulum; c, 
Gastralfilament; d, Generationsorganer. 
Den anden Side af ovennævnte Septulum, 
forstørret. a, Tvermuskler. 
Et Septum imellem Polypens Kropsvæg 
og Svælget, stærkt forstørret. a, Bin- 
devævslamel; 6, listeformig Bindevævs- 
forlængelse; c, Længdemuskler paa Bin- 
devævslisterne; d, Tvermuskler; e, /, 
Hpithelceller. 
Tversnit af Svælget, forstørret. a, ydre 
Hpithel; b, Bindevæv; c, Bindevævspy- 
ramide; d, Længdemuskler; e, Tver- 
muskler; f, Nematocyster. 
Et Stykke af Generationsorganet, for- 
storret. a,b, Kapsler, hvori Æg i for- 
skjellige Udviklingsstadier. 
Celler, som beklæde Generationskapse- 
lens indre Flade, forstørret. 
Et Embryo, forstørret. a, Gastræamund. 
En Spermatozoe, forstørret. 
En Gruppe Zooider, lidt forstørret. a, 
en fuldt udstrakt Zooide; 6, indtrukne 
Zooider; c,enZooide, hvor Tentakelen er 
begyndt at kommefrem; d, fuldt udstrakte 
Zooider; e, aflang Aabning paa den lidt 
indtrukne Tentakel; f, Pinnuler paa Ten- 
takelen. 
Lengdesnit af en Zooide, forstørret. 
a, b, Ectoderm med Slimkjertler; c, 
Svælget; d, indre Veg af Tentakelen ; e, 
Gastralfilamenter. 
Septa. c, Inferior extremity of the gul- 
let. d, Gastral filaments. e, Generative | 
organs, 
Entoderm cells from the inner surface 
of the body of the polyp. a, Clear cells. 
b, Coloured cells. 
The superior part of the sheath-formed 
dilation and the rachis with polyps; 
natural size. A polyp dissected longi- 
tudinally. a, The gullet. 0, c, Sep- 
tulum. d,e, Gastral filaments. f, Genera- 
tive organs. 
Å connective-tissue pyramid with epi- 
thelium covering, from the inner sur- 
face of the gullet; largely magnified. 
a, Red-coloured granules in the cell. b, 
Single-celled gland. 
Inferior extremity of the gullet, with a 
septulum and a gastral filament; mag- 
nified. «a, Longitudinal muscles of the 
septulum, 6, Connective-tissue membrane, 
by which the gastral filament is atta- 
ched to the septulum. c, Gastral filament 
d, Generative organs. 
Aspect of the other side of the same sep- 
tulum, magnified. a, Transversal muscles. 
A septum, between the wall of the body 
‘of the polyp and the gullet; greatly 
magnified. a, Connective-tissue lamella. 
a, Fillet-formed connective-tissue prolong- 
ation. c, Longitudinal muscles of the 
connective-tissue fillets. d, Transversal 
muscles. e,f, Epithelium cells. 
Transverse section of the gullet; magni- 
fied. a, Exterioriepithelium. b. Connective- 
tissue. c, Connective-tissue pyramids. 
d, Longitudinal muscles. e, Transversal 
muscles. f, Nematocysts. 
A portion of the generative organ; mag- 
nified. a, b, Capsules, with ova in 
various stages of development. 
Cells which clothe the inner surface of the 
capsule of the generative organ; magnified. 
An Embryo; magnified. åa, Mouth of 
the gastræa. 
A spermatozoa; magnified. 
A group of zooids; slightly magnified. 
a, A fully extended zooid. b, Retracted 
zooids. ¢, A zooid, in which the tentacle 
has commenced to appear. d, Fully 
extended zooids. e, Oblong aperture in 
the slightly retracted tentacle. jf, Pin- 
nules on the tentacle. 
Longitudinal section of a zooid; magni- 
fied. a,b, Betoderm with mucous glands. 
c, The gullet. d, Inner wall of the 
tentacle. e, Gastral filaments. 
