440 GEOLOGICAL SURVEY OF NEW JERSEY. 



N. nobilis (Ehrb.), Kutz. 



Fresh water. Generally distributed throughout the State. 

 Fossil at Drakesville. 



N. oblonga, Kutz. 



Fresh water. Common in ponds and ditches. Salem : 

 Woodstown, Sharptown. Atlantic : Hammontou. Gloucester : 

 Mullica Hill. Sussex : Hamburg, Andover. Morris : Lake 



Hopatcong, Budd's Lake ; fossil at Drakesville. 



* 

 N. oculata, Breb. 



Marine. Monmouth : Abundant between tide marks at the 

 mouth of Shark River and of Manasquan River. 



N. palpebralis, Breb. 



Marine. Monmouth : Common between tide marks in Mana- 

 squan River and Shark River. Cape May : Dennis Creek. 



N. parva (Ehrb.), V. H. 



Fresh water. Frequent in ponds and ditches. Camden : 

 Ancora. Gloucester : Mullica Hill. Burlington : Marlton. 

 Cape May. 



N. peregrina (Ehrb.), Kutz. 



Fresh or salt water ; common. Monmouth : Fresh-water 

 ditches near Ocean Beach ; salt marshes near the mouth of Mana- 

 squan River ; fossil in Ocean Beach clay. Atlantic : Water 

 from artesian well at Atlantic City. 



N. permagna, Bailey. 



Brackish or salt water ; common. Monmouth : Ditches near 

 the mouth of Shark River; marshes near the mouth of Mana- 

 squan River ; fossil in Ocean Beach clay. Cape May : Salt 

 marshes near Cape May. 



N. polyonca, Breb. 



Fresh water. Camden : Occasional in Kirkwood Pond 

 Kain ; mud from Cooper's Creek at Camden Lewis. 



N. Powellii, Lewis. 



Fresh water. Gloucester : Rare in old marl-pits at Mullica 

 Hill. 



N. prsetexta, Ehrb. 



Marine. Monmouth : Common in the mud of ditches near 

 the mouth of Manasquan River ; fossil in Ocean Beach clay. 



