168 PLATE LXV. 



from tlie coast of Ireland, by Mr. Robert Brown, 

 figured in Sowerby's ' British Miscellany,' xliii. The 

 specimen is now in my possession. Natural size. 



Figs. 6, 7, and 8. — Three small specimens of the 

 species from 70 fathoms, Shetland. Natural size. 



Vol. i, Plate XXXVII, fig. 380, represents a portion 

 of a section of the sponge from the type-specimen at 

 right angles to the surface. X 50 linear. 



