CHAP. vii. THE DEEP-SEA FAUNA. 429 



the hexradiate type characteristic of this group. 

 Between the two netted surfaces the sponge sub 

 stance is formed of loose curving meshes of loosely 

 aggregated bundles of long simple fibres, sparsely 

 mixed with spicules of other forms. This sponge 

 seems to live fixed to a stone. There are no 

 anchoring spicules, and the bottom of the vase, 



FIG. 67. Askonema setubalense, KKNT. One-eighth the natural size. (No. 25, 1870.) 



which in our two specimens is a good deal con 

 tracted and has a square shape something like an 

 old Irish 'mether,' has apparently been torn from 

 some attachment. This fine species was named 

 Askonema setubalense, and very briefly described 

 from a specimen in the Lisbon Museum by Mr. 

 Saville Kent, in a paper in which he noticed some 



