HYDRALLMANIA FALCATA. 73 



manner, as in the previous species. The 

 receptacles are sub-opposite and directed 

 forward. The outer lip of the aperture is 

 sharp and pointed. Receptacles and stems 

 both have a slightly compressed appearance. 

 The capsules are of an elongated shield shape, 

 the upper corners being prolonged into spines; 

 they are numerous on the specimens exhibited. 

 Not uncommon in the trawl, or thrown upon 

 the shore. 



Hydrallnmnicb falcata, Linnaeus. 



3 dry specimens and 1 specimen in box. 



SPECIMENS The stem * s l n g an( ^ spirally 

 64, 65, 66, 67. twisted, giving off alternate, 

 regular, pinnated, palm-like branches, each 

 pinna or side-branchlet bearing on its inner 

 side only, the jug-shaped receptacles, which 

 are crowded together. The capsules are oval, 

 with a slight collar to the aperture. The 

 spiral stem gives to this species a specially 

 graceful character. 



Very common in the trawl and often 

 along the shore. 



