VEG A-EXPEDITIONENS VETENSKAPLIGA ARBETEN. 441 
The bihamate spicules (Plate 24, fig. 37) are very characteristic 
for this species. They are comparatively large and irregularly 
C- or S-curved. Such a spiculum is figured by O. Schmidt 
in »Grundzuäge einer Spongienfauna Atl. Geb.», Pl. 5, Fig. 15, 
but I have not seen the description of that species") which is 
armed with these spicules, and therefore I cannot identify my 
new species. The length across the spicules is 0,12 mm. 
Colour. Yellow. 
label DTS ötrat, Hat of 15 NN. Tong. 490011 Wo 
depth 70 fathoms (561 5). 
Desmacella Peachii Bow. (0. 5.) var. grenlandica n. var. 
Plate 24, fig. 38—45, Plate 28, fig. 14. 
The shape of this new variety tolerably well agrees with 
that of Desmacella Peachit Bow. (O. 5); the surface is rugged 
and open; the sponge is mostly formed by fascicules of large 
acuate spicules; the sarcode 1s very sparing. The whole 
dermal membrane is destroyed. OÖOscula and pores incon- 
spicuous. The specimen is 30 mm in length, 20 mm in breadth 
and (2 mm. n thiekness. 
Skeleton. 'The skeleton consists of large acuate, small 
linear acerate spicules and bihamate spicules of two kinds. 
The large acuate spicules (Plate 24, fig. 38) are the most 
numerous; these spicules form the firm fibres of the sponge- 
body; they are slightly curved near the base, tapering from it 
towards the point. Exceedingly rare are obtuse spicules, which 
naturally are monstrous forms of the acuate ones. The length 
US. IG s0dngol 
The linear acerate spicules (Plate 24, fig. 39, 40). "These spi- 
cules are of two kinds, one of them being 0,25 mm in length, 
the other 0075 mm. "They are congregated in fascicules and 
exceedingly slender and straight. 
") Named Desmacella sp. 
