449 
[ I Gelliodes biformis nov. spec. 
(Fig. 8 a—c.) 
Colville Channel. 35 fathoms. Sand, mud. 21/XII.1914. 
n Two specimens, both with long, branching, cylindriform bodies, 
one ca. 220 mm, the other 270 mm in length, at a diameter 
I of 4—7 mm; one is attached to a shell with an irregular root- 
network, the other torn loose from the attachment; this latter spec- 
imen has a curious outer aspect: 
i the oscula are nearly all situ- 
ated on one side of the body, 
with a mutual distance of 10— 
30 mm; they are ca. 2 mm in 
diameter, and situated on the 
top of ponical elevations varying 
ji in length up to 6 — 7 mm; these 
elevations may give origin to 
I new branches; at least one of 
! the three branches is situated 
exactly as the oscular elevations 
issuing from the stem at exactly 
the same angle as these obliquely 
I upwards. The former specimen 
also has oscula, but of a smal- 
i ler diameter, and lying in a level 
Fig. 8. Gelliodes biformis nov. spec. a. Con- 
with the surface of the sponge, necting fibre. b. Oxea. c. Sigmata. 
i not situated on elevations, and 
' not so regularly arranged, though one side of the cylinder is more 
richly set with them. Surface very finely hispid from spicules pier- 
* cing the dermal-membrane perpendicularly. Texture soft, elastic. 
Colour (formaline) light yellowish, stem darker, greyish on account 
^ of incorporated foreign matter. 
The skeleton is a coarse reticulation of spongin-fibres cored 
with oxea; the meshes are more or less irregular, up to 650 in 
( width;,the main fibres are only slightly thicker than the connecting 
ones (ca. 52 fn as against ca. 40 /f), but they are generally poly- 
1 spicular, whereas the connecting fibres are one- to bispicular (fig. 
8 a), the main fibres are on a transverse section seen to radiate 
towards the surface in a more or less pronounced perpendicular 
I 
Vidensk. Medd. fra Dansk naturh. Foren. Bd. 77. 29 
