Ende. Den bagerste Del, optagende hele Tarmkanalen, 
næsten kuglerund, glasklar, endende i en opak Conus, paa 
hvis Spids Anus. Æggestokken i den forreste Del af 
Kropshulheden. Ingen Børster. 
Artskarakter. 
Kroppens forreste, cylindriske, opake Del 12”” lang; 
den bagerste glasklare, kugleformige Del 18”” lang, 12 til 
14”m bred. Farven er hvid paa den forreste Kropsdel, 
spillende lidt i det Blegrøde, og paa den koniske Ende, 
imedens den kuglerunde, glasklare Del er farvefri. 
Ogsaa her ere vi i det beklagelige Tilfælde at maatte 
gjøre Undskyldning for den mindre fuldstændige Beskrivelse, 
vi have leveret; thi kun et enkelt Exemplar stod til vor 
Tjeneste, og da Dyret baade er lidet og paa Grund af 
dets Zarthed yderst vanskeligt at behandle, have de anato- 
misk-histologiske Undersøgelser været meget møisommelige, 
saa ufuldkomne de end ere blevne. Men Saccosoma vitreum 
er jo i sin Form en saa mærkelig Gephyre, at vi ikke 
kunne undlade at beskrive den; og det eneste Exemplar er 
derfor saagodtsom ganske ofret paa Videnskabens Alter. 
Vi have henført dette høist mærkelige Dyr til Fami- 
lien Bonellidæ, ihvorvel det i flere Henseender afvige der- 
fra; men naar vi ikke vilde danne en ny Familie for det, 
hvortil vi for Tiden ingen tilstrækkelig Grund finder, 
maatte vi blive stadende ved den næynte Familie, hvortil 
det mest nærmer sig. 
Epithetosoma* norvegicum, n. g. & sp. 
Tab. VI, Fig. 9—15. 
Kroppen er eylmdrisk, 12”” lang, 2”” bred med en 
lidt tykkere afrundet Forende, Fig. 9, a, hvorfra udgaar 
et Appendix (Snabel), der danner et hult halvgjennemsig- 
tigt Rør, Fig. 9, 6, som er 30” langt, omtrent 1”” tykt 
ved Grunden og 0.87” j den øvrige Længde, indtil den 
yderste Spids, der er lidt tyndere; og hvori Røret ender 
blindt. 
Kroppen smalner successivt af mod den bagerste Ende, 
der er konisk afrundet, og paa hvis Spids fimdes den runde 
Analaabning. 
Strax bagenfor Snabelens Grunddel findes paa hver 
Side af Kroppen en Spalte, Fig. 13, a, der er omtrent 
2.5”” lang, har en lidt krum Retning, saa at den forreste 
Ende, der er den smaleste, bøier noget af mod Rygsiden; 
* entsetoy = Tilheng; copa — Legeme. 
* 
39 
extremity. The posterior portion, containing the whole of 
the intestinal canal, almost globular, hyaline, terminating 
in an opaque conus, at the apex of which is the anal 
aperture. The ovary in the anterior portion of the peri- 
visceral cavity. No bristles. . 
Specific Character. 
The anterior cylindric opaque portion of the body 
12”m long; the posterior, hyaline, globular portion 18” 
long, 12—14”” broad. Colour white, shot with pale red, 
on the anterior portion of the body and on the conical 
apex; the globular, hyaline portion colourless. 
Of this genus, too, our description is in some respects 
we regret to say, confessedly incomplete, referring as it 
does to a single specimen, the only one yet obtained. Be- 
sides, the small size and delicate organisation of the animal 
necessitating the greatest care in handling, its anatomical- 
histological investigation, however incomplete, has proved a 
toilsome and perplexing task. But Saccosoma vitreum is 
in form* and structure a Gephyrean so truly remarkable, 
that we could not resist the call to describe it; and a 
unique specimen of a new genus has, we may say, been 
sacrificed to the paramount claims of Science. 
We have referred this very curious animal to the 
family Bonellide, — with which, though differing from it 
«in many important points, Saccosoma has most in common 
— since we are not at present prepared with conclusive 
reasons warranting the establishment of a new family for 
its reception. 
Epithetosoma! norvegicum, n. g. & sp. 
Pl. VI, figs. 9—15. 
Trunk cylindrical, 12”” long, 2”” broad, with a some- 
what thicker rounded anterior extremity, fig. 9, a, from 
which protends an appendix (the proboscis), constituting a 
hollow, semi-translucent tube, fig. 9, b, 307" long and about 
1™ thick at the base; elsewhere 0.8”” throughout its 
length to the extreme point, which is a trifle slenderer, 
and in which the tube terminates cæcally. 
The trunk gradually narrows towards its posterior 
extremity, which is conically rounded, and pierced at the 
point with the round anal opening. 
Immediately posterior to the basal portion of the 
proboscis, on either side of the trunk, is seen a cleft or 
fissure, fig. 13, a, about 2.5”" in length, and somewhat 
arcuate, the anterior extremity, which is narrower than the 
1 entSetov: appendage; cwya: body. 
