704 



THE AMERICAX XATlli'M./ST [Vol. XL 



with subequal, remote teeth and an indistinct nothihis one third 

 the distance from the tip. ^'ent^al hnndle (•()ni])o.sed of 4 biim- 

 cinatc selve with subequal teeth and a distinct ncxkihis midway 

 between l)ase and tip. Length 1.0 mm. Xmnber of segments 

 in an in(hvi(lual 15 to 16. Budding observecL 

 Cedar Point, Sandusky, Ohio. 



Five species of Xaidium have been described: three from cen- 

 tral Europe, one from the East Indies, and one from South 



the development of the tentacular pn,ces> of the prostomium which 



