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bagerste Ende. En halvmaaneformig, lidt fremragende Fold
omkring Munden (Rudiment af. Snabel). Paa Bugfladens
forreste Del to cylindriske, lange Papiller, paa hvis Spids
en rund Aabning for Æggebeholdernes Udførselsgang.
Ingen Børster.
Tarmrøret danner Slynger, men ingen Spiral og ender
i en Kloak, fra hvis begge Sider udgaar et forgrenet
Kjer-telapparat.
Centralnervestrængen glat, uden Ganglier.
• En Æggestok, der ligger langs Nervestrængen i den
bagerste Halvdel af Kropshulheden.
To Uteri med deres Udførselsgang og Tragt.
Hannen ukjendt.
Artskarakter.
Legemet valseformigt, glat, 120mm langt, 20mm tykt,
antager under1 Kontraktioner forskjellige Former. Farven
lysere eller mørkere græsgrøn med hvidgul Mundskive. De
krumbøiede Papiller paa Bugfladen grønlige med hvidgule
Ender.
Saccosoma1 vitreum, n. g. & sp.
Tab. VI, Fig. 1—8.
Legemet kolbeformigt; den forreste smale forlængede
Del, Fig. 1, 2, a, er cylindrisk, 12°"" langt, omtrent 5mm
bredt ved Grunden og 1.5""" i Spidsen, hvor den runde,
temmelig vide Mundaabning findes, Fig. 1, 2, b, der er
omgiven med en Vold, hvorfra stærke Længdefolder strække
sig ned i Spiserøret. Lidt bagenfor Mundaabningen sees
paa Bugsiden en lille Päpille, paa hvis Midte er en fin
Aabning.
Huden er paa denne cylindriske Del uigjennemsigtig,
tyk, fast. og rynket. Legemets bagerste Del er næsten
kuglerundt, Fig. 1, 2, c, 18mm langt og 12—14""» bredt.
Huden er overordentlig tynd, fuldkommen glasklar,
saa at den af mangfoldige Slyngninger bestaaende Tarm
sees som om den laa blottet; kun paa den bagerste
Ende, der er konisk, Fig. 2, d, og paa hvis Spids den
runde Analaabning, Fig. 2, e, findes, er Huden ligesom
paa Kroppens forreste forlængede Del tyk, fast og
uigjennemsigtig.
1 -iaxxoç = Sæk; owjjia = Legeme.
of the posterior extremity. A lunate, somewhat prominent
fold round the mouth (rudimentary proboscis). On the
anterior portion of the ventral surface two long, cylindrical
papillae, having each at the apex a round aperture for
the eferent duct of the corresponding uterus.
No bristles.
The intestinal canal with numerous circumvolutions,
but no spiral coil; it disembogues into a cloacum, from
both sides of which issues a ramifying glandular apparatus.
The central nervous chord smooth, destitute of nodes
or ganglions.
One ovary, protending along the nervous chord in
the posterior half of the perivisceral cavity.
Two uteri, each with an eferent duct and
funnel-shaped tube.
The male as yet unobserved.
Specific Character.
Body cylindrical, smooth, 120mm long, 20mm thick,
repeatedly changing its form as it contracts and expands.
Colour a lighter or darker grassy green. Buccal disk
whitish-yellow; the arcuate papillæ on the ventral surface
greenish, with whitish-yellow extremities.
Saccosoma1 vitreum. n. g. & n. sp.
Pl. VI, fig. 1—8.
Body cucurbit-like in form; the anterior, slender,
produced portion cylindrical, figs. 1; 2, a, 12mm long, about 5mm
broad at the base, and 1.5 mm broad at the apex, which is
pierced with the round and comparatively wide buccal aperture,
figs. 1; 2, b, surrounded by a cutaneous ridge, from which
prominent longitudinal folds protend downwards into the
oesophagus. A little posterior to the buccal aperture on
the ventral surface, is seen a small papilla, with a
minute opening in the middle.
The skin covering, this cylindrical portion is opaque,
thick, firm-textured, and rugose. The posterior portion of
the body is almost globular, figs. 1; 2, c, 18""" long and
12—14"»m broad.
The skin is remarkably thin, and hyaline, giving
to the numerous circumvolutions of the intestine the
appearance of being denuded; only on the posterior, acuminate
extremity, fig. 2, d, pierced at the apex with the round
anal opening, fig. 2, e,. and on the anterior produced
portion of the trunk, is the integument thick, firm-textured,
and opaque.
1 üotxxoç: sack; criijia: body.
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