THE 



AMERICAN NATURALIST 



Vol. XL October, 1906 No. 478 



XAIDID.E OF CEDAR POINT, OHIO 

 L. B. WALTON 



The microscopic annelids constituting the family Naididiv of 

 the subclass Oligocha^ta are a group which has received little 

 attention in America. Michaelsen (:00) in his monograph of 

 the Oligocha'ta recognized 42 species from various parts of the 



territory althouuli (.l).MM-v;iti()n> made l)y sniitli i :()()) and noted 

 in the appendix ("Zusat/c mid Hcriclitinimucn " ) increased the 

 luunber to 12. While this, taken in coiiiicct ion with the fact 



