48 



ZQOLOOT. 



Sponges notth of New York is ChaUntUa oeulata (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., Stylocordyla ioreale (Fig, 33). At 

 the depth of 100 fathoms iu the Gulf of Maine occurs a 



Pig. 34. — Fheronema Ann<m, half natural size, with Btellate and anchor-like spicules, 

 much enlarged.— After Lcldy. 



similar species {S. longissimum Sars). Fig. 34 represents 

 a fine silicious sponge {Pheronema Annce Leidy) from the 

 West Indies. The most beautiful of all silicious sponges is 

 the Venus' floWer-basket {Euplectellum aspergillum), which 

 lites anchored in the mud at the depth of about 10 fathoms, 

 near the Philippine Islands. 



