428 GEOLOGICAL SURVEY OF NEW JERSEY. 



S. scabrum, Breb. 



S. fasciculoides, Wolle. 



S. pusillum, Wolle. 



S. Franconicum, Reinsch. 



S. Haabceliense, Wille. 



All frequent in ponds. 



S. incisum, Wolle. 



Morris : Split Rock Pond. 



S. meriani, Reinsch. 



Frequent in ponds. 



S. Heleneanum, Wolle. 



Morris : Split Rock Pond. 



S. cerastes, Lund. 



Frequent in ponds. 



S. gracile, Ralfs. 



Same habitat. 



S. Ophiura, Lund. 



Same habitat. 



Var. tetracerum, Wolle. 



Morris : Denmark Pond. 



Var. pentacerum, Wolle. 

 Same locality. 



S. macrocerum, Wolle. 



Frequent in ponds. 



S. odontatum, Wolle. 



Morris : Split Rock Pond. 



S. Rotula, Nordst. 



Morris : Split Rock and Denmark Ponds. 



S. coronulatum, Wolle. 



Morris* Denmark Pond ; Gloucester : Pond near Malaga. 



S. pentacladum, Wolle. 

 Frequent in ponds. 



