on the Coast of New England. 501 
of radiating bundles of large and long slender spicula, often 
more than half an inch long, many of which, at the external 
layer, divide into three horizontal or recurved branches or 
prongs, each of which usually forks near the end into two acute 
divergent branches, serving to support the cortical layer, which 
is more or less irregular and uneven, but firm; some of the 
spicula referred to project beyond the surface, and nearly the 
Whole exterior is rudely and densely hispid, with long, setiform, 
acute spicules, which project unequally from the surface, the 
free ends of many of them being half an inch or more in 
* It may be the Thenea muricata Gray (Bowerb. sp.), but does not agree wi 
the description. The sponge referred to by Whiteaves (this volume, p. 211) was 
Beek an imperfect specimen of the same species. Our species was attached. 
pebbles, etc. 
