med det sædvanlige Epithel, Fig. 36, h. Paa den ydre 
Membrans ydre Flade, der støder umiddelbart til de 4 
Længdekanaler, ere de 4 Septa insererede, og imellem disse 
iagttages fra Begyndelsen af den bulbøse Del og lige ned 
til Axens Boining en ganske særegen Fortykkelse af Mem- 
branen, Fig. 32, f. 32, b. 35, e. Denne Fortykkelse 
(Hypertrophi), der paa enkelte Steder er mindst et Par 
Millimeter tyk, imdtager næsten Kanalens hele Bredde, 
men er dog bredest i Ventral- og Dorsalkanalen og frem- 
byder ligesom en Mængde Udskjæringer, Fig. 32, g, i hvis 
Bund findes fime Aabninger, som føre md til de tidligere 
omtalte Saftkanaler i det Bindevæv, Fig. 36, h, der danner 
Sammenvoxningen imellem Skedens ydre og indre Membran. 
Det hele har et Udseende dels af udskaaret Løvværk, dels 
af indridset Netværk; forovrigt iagttages overalt paa Mem- 
branens ydre Flade ovenfor den bulbøse Del en Mængde 
fine Aabninger, der især ere tydelige til Siderne, og som 
føre ind til Skedens Hulhed. 
Førend vi afslutte denne Afhandling skulle vi nu 
meddele en tabellarisk Oversigt over de hidtil fundne 
Exemplarer af Umbellula encrinus. 
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 canals, 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, yet, it is broadest in the ventral and dorsal 
canals, and presents, as it were, a number of carvings, 
(fig. 32, g), in whose bottom minute apertures are observed ; 
these lead into, the previously spoken of, nutrient ducts in 
the connective-tissue (fig. 36, mh) which forms the concretion 
the of the sheath. 
The whole has an appearance, partly, of carved fretwork, 
partly, of inlaid reticulation, and, there is, otherwise, every- 
where, observed on the outer surface of the membrane 
between outer and inner membrane 
above the bulbous part, 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 tabular specification of the specimens of Umbellula encrinus, 
which have hitherto been found. 
