FRESH-WATER RHIZOPODS 151 



water with bog moss or sphagnum, but [rarely occurs 

 in ordinary pond water. 



No adherent or extraneous bodies of any kind 



Fig 43. Clathrulina elegans, Fresh-water Rhizopods (after Leidy). Diameter 



of an inch. 



have ever been noticed on the shells. In this respect 

 it greatly differs from the generality of Difflugia and 

 Nebela specimens. The feelers, as in the case of the 

 Nebela, extend to the three-hundredth of an inch, 



