■ii, 



ZOULOGT. 



sponges north of New York is Clialinula oculata (Bower- 

 bank), which grows in long slender branches on the piles of 

 wharves and bridges. Allied to it is Axinella (Fig. 32, A. 

 polypoides). 



Allied to Tethea, which is sessile, is a deep-sea form grow- 

 ing on a long stalk, i.e., Styhcordyla boreale (Big. 33). At 

 the depth of 100 fathoms in the Gulf of Maine occurs a. 



\iy 



Fiff. a4. — P/tei-Oitfitmi Ari'ui, half natural sLie, with stellate and anchor-like epiculcsv 

 much enlarged. — After Leidy. 



similar species {S. hnu/iysinnim Sars). Fi,2;. 34: represents 

 a fine silicious sponge (Pheronemn A mice Leidy) from the 

 West Indies. The most beautiful of all silicious sponges is 

 the Venus' flower-basket {EupJectelhtm aspergillum). which 

 lives anchored in the mud at the depth of about 10 fathoms» 

 near the Philippine Islands. 



