446 ERISTEDT, SPONGES. 
species, the largest of which is like an Ascidia. The body, or 
rather the dermal layer, is inflated, containing the compara- 
tively sparing, softer sarcode-portion, thus in shape tolerably 
agreeing with Polymastia brevis Bow. The length of the largest 
specimen is 30 mm, the breadth 20 mm, the thickness 15 mm. 
There are three cloacal fistule, the largest being 10 mm in 
length. These fistule are hollow, as being continuations of 
the greater bottle-shaped part. They are open, ending in 
an osculum. This specimen is attached to a stone; the other 
specimens are only fragments. 
The skeleton consists of spicules only of two kinds, 
viz.: obtuse spicules and equianchorate spicules. 
The obtuse spicules (Plate 25, fig. 1) are totally smooth 
straight or -slightly curved. . The length is 0j8 mm Hiese 
spicules form the dermal layer, but are rarely -present m ohe 
inner portions. 
The eqwianchorate spicules (Plate 25, fig. 2). The spicules 
of this kind are only to be found in the kernel. Thershats 
a little inflated near the hooks. They are very numeronet 
Oj mm NN lenotn. 
Colour. The colour is light or light-grey, when driedion 
preser ved in spirit. 
Habitat. Baffin Bay, Lat. 68” 8 N., Long. 58” 47 W., depth 
169—183 fathoms. 
Cornulum textile Carter. 
Cornulum textile, Carter, Ann. Mag. Nat. Hist., Ser. 4, Vol. 18, 1876, pag. 
300, Tale 12 ne. 0 PENN 15 Hö, ATEN 
Among the sponges from that locality, viz. Baffin Bay, 
where the preceding species have been found, there are two 
specimens of this species. Both agree well with Carter's 
description and figures. They are attached to coralssmiime 
surface is even and smooth. The inner portions fasciculated, 
the fascicules radiating from the centre of the sponge obliquely 
