91 
Tab. VIII, Fig. 25. En Kalkplade, der viser Armenes De- | PI. VIII, fig. 25. A calcareous plate showing the division 
* line. åa en Arm; b Armens Deling, of the arms: @ an arm; b division of 
forstørret. arm; magnified. 
— 35. Celler og Krystaller i Vandkarfluidet, | — 35. Cells and crystals in the aquiferous fluid, 
forstørrede. a, a Celler, hvori indeslut- magnified: a, a cells contaiming calcare- 
tet Kalkkrystaller; b frie vinrøde Kry- ous crystals; b free crystals of a vinous 
staller. ae red. 
— 36. Forgrenet Bindevævslegeme, forstørret. — 36. Ramous corpuscles of connective tissue, 
. magnified, . 
— 37. Klare kornholdige Celler (Sempers Slim- — 37. Pellucid cells with granulary contents 
celler), forstørrede. | (Semper’s mucous cells), magnified. 
Tab. LX, Fig. 38. De brune kolbeformige Legemer i Tarm- | Pl. IX, fig. 38. The brown clavate corpuscles in the in- 
appendices, forstørrede. } testinal appendices, magnified. 
— 39. Hannens Kjønsorgan. hå — 39. Generative organ in male. 
— 40. Hunnens do. — 40. Generative organ in female. 
— 41. Me i forskjellige Udviklingsstadier. | — 41. Ova in yarious stages of development. 
Trochostoma arcticum, naturlig Storrelse. 1. Trochostoma arcticum, natural size: a 
a Mundskivens glatte, hvelvede Del. smooth, arcuate portion of oral disk. 
Mundskiven med de i de aflange For- 2. Oral disk with tentacles retracted into 
dybninger indtrukne Tentakler, samt de the oblong cavities, and the tubular pro- 
rørformige Forlængelser, forstørrede. a lations; magnified: a oral disk; b tub- 
Mundskiven; b de rørformige Forlæn- ular prolations; c oblong cavities, in 
gelser; c de aflange Gruber, hvori sees which are seen the retracted tentacles. 
Tentaklerne. 
. En Tentakel, forstørret. a Midtfligen. 3. <A tentacle, magnified: a medial lobe. 
Trochostoma arcticum 1 naturlig Stør- | 4. Trochostoma arcticum, natural size, op- 
relse, aabnet efter Bugen. da Tver- | ened yentrally: a transverse muscles: 
muskler; ) Længdemuskler; ¢ Kalkring; | b longitudinal muscles; c calcareous ring; 
d Vandkarring; e Polis Blere; f Gene- d water-vascular ring; e vesicle of Poli: 
rationsorganer; g Spiseror og Mave; h _ f generative organs; g cesophagus and 
Iste nedstigende Tarmdel med Bugkarret stomach; h Ist descending portion of 
og dets Anastomoser; 7 den fortil intestine with ventral vessel and its 
gaaende Tarmdel med Bugkarret og | anastomosing branches; ? anteriorly pro- 
Mesenteriet; å den af Ler stærkt ud- | tending portion of intestine with ventral 
videde Rectum; 7 Kloaken med de der- . | vessel and mesentery; ÅÆ rectum much 
fra udgaaende Tarmappendices. distended with clay; / cloacum with in- 
testinal appendices issuing from it. 
. Hud, hvori gjennemborede Kalkplader 5. Strip of skin in which are seen perfo- 
med Krone, forstørret. rate calcareous plates with corollæ, 
magnified. 
Meo, 2, Lelie, Tversnit af Huden hos Trochostoma arc- 6. Transverse section of skin in Trocho- 
ticum, forstørret. a Cuticula; b Epi- stoma arcticum, magnified: a cuticle; b 
thel; c fibrillært Bindevæv med Binde- epithelium; ¢ fibrillous connective tissue 
vævslegemer; d Kalkplade med Krone; with corpuscles of do.; d calcareous plate 
e Radialneryen; f Radialkar med Nide- with corolla; e radial nerve; f radial 
erene. | vessel with lateral branches. 
7. Tversnit af Huden af Trochostoma 7. Transverse section of skin in Tyrocho- 
boreale, forstørret. a elliptiske, vinrøde stoma boreale, magnified: a elliptic cal- 
Kalklegemer; b Kalkplader med delte careous corpuscles of a vinous red; 0 
Kroner,.som ere forsynede med Takker calcareous plates with cleft corolle, den- 
paa den fri Ende; c Epithellaget; d tate at the free extremity; c epithelial 
fibrillært Bindevæv; e Nerven; f Radial- layer; d fibrillous connective tissue; e 
kar, the nerve; f radial vessel. 
. Kalkplader med Udløbere og Kroner 8. Calcareous plates with offshoots and cor- 
fra Dyrets Ender, forstorrede. ollæ springing from the extremities of 
the body. 
— 9, Forskjelligformede gjennembrudte Kalk- | — 9, Perforate calcareous plates, of different 
12* 
a 
