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med det sædvanlige Epithel. Kig. 3(3, li. Paa den ydre
Membrans ydre Flade, der støder umiddelbart til de 4
Længdekanaler, ere de 4 Septa, insereredo, Og imellem disse
iagttages fra Begyndelsen af den bulbøse Del og lige ned
til Axens Boining en ganske særegen Fortykkelse af
Membranen, Fig. 32, f. 32. 1). 35, c. Denne Fortykkelse
t Hypertrophi), der paa enkelte Steder er mindst et Par
Millimeter tyk, indtager næsten Kanalens hele Bredde,
men er dog bredest i Ventral- og Dorsalkanalen og
frembyder ligesom en Mængde Udskjæringer, Fig. 32, ff, i hvis
Bund findes fine Aabninger, som fore ind til de tidligere
omtalte Saftkanaler i det Bindevæv, Fig. 36, li, der danner
Sammenvoxningen imellem Skedens ydre og indre Membran.
1 )ot hele har et Udseende dels af udskaaret Løvværk, dels
af indridset Netværk; l’orovrigt iagttages overalt paa
Membranens ydre Flade ovenfor den bulbose Del en Mængde
fine Aabninger, der især ere tydelige til Siderne, og som
fore ind til Skedens Hulhed.
Forend vi afslutte denne Afhandling skulle vi nu
meddele en tabellarisk Oversigt over de hidtil fundne
Exemplarer af Umbellula encriniis.
inner membrane of the sheath, which causes the space just
described, to disappear, but, in the connective-tissue which
fills out the space, there are a multitude of nutrient ducts
furnished with the usual epithelium (fig. 36, h). On the
outer membrane’s outer surface, which abuts, immediately,
upon the 4 longitudinal e; mais, the 4 septa are inserted,
and between these, there is observed, a quite peculiar
tumefaction of the membrane (figs. 32, f, 32, b, 35, e),
extending from the commencement of the bulbous part,
right down to the curve of the axis. This tumefaction
(Hypertrophy), which, in some places, is at least a couple
of millimetres thick, occupies, nearly, the entire breadth of
the canal, but, vet, it is broadest in the ventral and dorsal
canals, and presents, as it were, «a number of carvings,
(fig. 32, ff), in whose bottom minute apertures are observed;
these lead into, the previously spoken of, nutrient ducts in
the connective-tissue (fig. 36, h) which forms the concretion
between the outer and inner membrane of the sheath.
The whole has an appearance, partly, of carved fretwork,
partly, of inlaid reticulation, and, there is, otherwise,
everywhere, observed on the outer surface of the membrane
above the bulbous par® a multitude of minute apertures,
specially prominent on the sides, and which lead into the
cavity of the sheath.
Before we conclude this memoir, we shall now give
a tabula r specification of the specimens of Umbellula encriniis,
which have hitherto been found.
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