bagerste Ende. En halvmaaneformig, lidt fremragende Fold 
omkring Munden (Rudiment af Snabel). Paa Bugfladens 
forreste Del to eylindriske, 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, 120”” langt, 20”” tykt, 
antager under Kontraktioner forskjellige Former. Farven 
lysere eller mørkere græsgrøn med hvidgul Mundskive. De 
krumbøiede Papiller paa Bugfladen grønlige med hvidgule 
Ender. 3 
Saccosoma' 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 5”” 
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 Papille, paa hvis Midte er en fin 
Aabning. 
Huden er paa denne eylindriske Del uigjennemsigtig, 
tyk, fast og rynket. Legemets bagerste Del ser næsten 
kuglerundt, Fig. 1, 2, c, 18”" 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 uigjen- 
nemsigtig. ; 
1 Saxxoo = Sek; coun — Legeme. 
34 
. fold round the mouth (rudimentary proboscis). 
of the posterior extremity. A lunate, somewhat prominent 
On the 
anterior portion of the ventral surface two-long, cylindrical 
papillæ, 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, 120” long, 20”” 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. 
Saccosoma* vitreum, n. g. & n. sp. 
BL VAL ig, 8 
Body cucurbit-like in form; the anterior, slender, pro- 
duced portion cylindrical, figs. 1; 2,a, 127" long, about 5”” 
broad at the base, and 1.5”” broad at the apex, which is pier- 
ced 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 
cesophagus. A little posterior to the buccal aperture on 
the ventral surface, is seen a small papilla, with a mi- 
nute 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”” broad: 
The skin is remarkably thin, and hyaline, giving 
to the numerous circumyolutions of the intestine the ap- 
pearance 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 por- 
tion of the trunk, is the integument thick, firm-textured, 
and opaque. 
1 Yoxxoc: sack; cwua: body. 
; we 
