48 ZOOLOGY. 
sponges north of New York is Chalinula 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.¢., Stylocordyla boreale (Fig. 33). At 
the depth of 100 fathoms in the Gulf of Maine occurs a 
Fig. 34.—Pheronema Anna, half natural size, with stellate and anchor-like spicules, 
much enlarged.—After Leidy. 
similar species (8. longissimum Sars). Fig. 34 represents 
a fine silicious sponge (Pheronema Anne Leidy) from the 
West Indies. ‘The most beautiful of all silicious sponges is 
the Venus’ flower-basket (Huplectellum aspergillum), which 
lives anchored in the mud at the depth of about 10 fathoms, 
near the Philippine Islands. 
