418 GEOLOGICAL SURVEY OF NEW JERSEY, 



C. curtus (Breb.), Kirch. 



Same habitat. 

 O. connatus (Breb.), Kirch. 



Same habitat. 



O. CleTei (Lund.), Wolle. 



Burlington : Brown's Mills. 



C. Thwaitesii, Ralfs. 



Monmouth : Frequent in a pond at Spring Lake. 



CO8MARIUM, Corda. 

 C. ovale, Ralfs. 



In ponds. 

 C. Cucumis, Corda. 



Same habitat ; frequent. 

 C. constrictum, Delp. 



Same habitat. 

 O. granatum, Breb. 

 C. moniliforme, Ralfs. 

 C. globosum, Bulnh. 

 C. bioculatum, Breb. 



All these are frequent in ponds. 



O. Quimbyi, Wood. 



Camden : In a spring near Camden Wood. 



C. tinctum, Ralfs. 



In ponds. 

 C. tumidum, Lund. 



Morris : Split Rock Pond. 

 O. sejunotum, Wolle.. 



Gloucester : Pond near Malaga. 



O. nitidulum, De Not. 



In ponds ; frequent. 



O. variolatum, Lund. 



In ponds, southern parts of the State. 



O. contractum, Kirch. 



Morris : Denmark and other ponds. 



