432 GEOLOGICAL SURVEY OF NEW JERSEY. 
A. levissima, Greg. 
Marine. Monmouth: Common in Manasquan River and 
Shark River, on the sand- flats. 
A. lanceolata, Cleve. 
Marine. Monmouth: Occasional in Shark River and Mana- 
squan River. Atlantic: Pools on the marshes near Atlantic City. 
A. lineata, Greg. 
Marine. Atlantic: Occasional in pools on the marshes near 
Atlantic City. 
A. naviculacea, Donkin. 
Marine. Monmouth: Common on the sands at the mouth of 
Shark River. 
A. obtusa, Greg. 
Marine. Monmouth: Common between tide-marks in Shark 
River and Manasquan River. 
A. ovalis, Kiitz. 
Fresh water. Common in ponds. Camden: Kirkwood. 
Laurel Mills. Sussex: Hamburg, Andover. 
A. Pediculus (Kiitz.), Grun. 
Fresh water. Camden: Common in pond at Kirkwood. 
A. plicata, Greg. 
Salt or brackish water. Monmouth: Oa the wet sands just 
above tide-marks in Shark River and Manasquan River. At- 
lantic: Tidal pools near Atlantic City. 
A. Proteus, Greg. 
Marine. Monmouth: Common between tide-marks in Shark 
River and Manasquan River. 
A. rectangularis, Greg. 
Marine. Atlantic: Marsh pools at Atlantic City. 
A. robusta, Greg. 
Marine. Monmouth: Common on sands between tide-marks 
in Shark River and Manasquan River. 
A. salina, W. Sm. 
Marine. Atlantic: Common in pools near the inlet at At- 
lantic City. 
