72 BRITISH HYDROID ZOOPHYTES. 



wrinkled, and slightly tapering at the base. 

 Often grows upon scallop valves and on rocks. 

 Trawled from rather deep water. 



Sertularia argentea, Ellis and Soiander. 



2 dry specimens, and 1 specimen in box. 



specimens This is a very elegant species. 

 59, 60, 61. The stems produce alternate 

 short branches, each branch giving out other 

 short branches in a palmate manner. The 

 receptacles are sub-opposite and sharp-tipped. 

 The capsules are somewhat shield-shaped. 

 Trawled from moderately deep and very deep 

 water. 



This species, and S. cupressina are often 

 chosen for decorative purposes. 



Sertularia cupressina, Linmeus. (Plate VII.) 



2 dry specimens. 



specimens Somewhat like the last species in 

 62, 63. habit, but the stem is much longer 

 and more tapering. It throws out short 

 branches, mainly alternately, which 

 immediately fork and re-fork in a palmate 



