86 Observations on the Animal of Rotella Lara. 



at least two hours each tide, — just buried in the sand, and very 

 abundant. There were several to a square inch, for several 

 rods in extent. When I put them in water, they did not move 

 about much, — only raised up their siphons. So I conclude 

 that they feed on the minute living things brought to them by 

 the water. 



