■[ 289 ] 
when magnified. This fponge approaches very 
near to the figure of the Corallium alhim ^porbfum 
maximum of Sir Hans Sloane, fee the Hift. of 
Jam. Vol. Tab. iS. fig. 3. and of the Poruj 
albus ereiitor ramojiis fuberculis crebris Jurfum 
fpebi antibus of Morifon. See Hift. Ox. p. 3 * 
Se<ft. 15. Tab. 10. fig. 3. 
Fig. H is a fponge from Stavanger on the coafi: of 
'Norway j'this may be called the Sea-fan fponge, 
from its great likenefs to the keratophyton of 
that name j all its pores are furrounded with fmall 
fpiculae, whichj from their minutenefs, could 
not be well repreferited in the drawing. 
The dichotomous branched fponge at Fig. I is of a 
firm but elafiic texture, very full of fmall holes, 
guarded by minute fpines 5 this was found on 
the coaft of Norway, and prefented to me by 
my worthy friend Peter Collinlbn^ Efi^uire, > 
F. R. S. 
Vol. LV. 
XXXII. Ex- 
