434 GEOLOGICAL SURVEY OF NEW JERSEY. 
ENCYONEMA, Kutz. 
E. czspitosum, Kiitz. 
Fresh water. Gloucester: Common in pond at Mullica Hill. 
E. gracile (Ehrb.), Rab. : 
Fresh water. Atlantic: Frequent in ponds at Hammonton, 
and Camden: Kirkwood. 
EH. prostratum (Berk.), Ralfs. 
Fresh water: Sussex: Common in ponds near Andover. 
EH. ventricosum, Kiitz. 
Fresh water. Common in ponds and ditches. Burlington : 
Marlton, Pemberton. Gloucester: Mullica Hill. Salem: 
Sharptown, Woodstown. Sussex: Andover, White Hall, Cul- 
ver’s Gap. Morris: Lake Hopatcong. 
NAVICULE. 
MASTOGLOIA, Thwaites. 
M. angulata, Lewis. 
Marine. Cape May: Common at Shellinger’s Inlet, and 
Atlantic: Marshes at Atlantic City—Lewis. 
M. elegans, Lewis. 
Marine. Same localities as the preceding—Lewis. 
M, exigua, Lewis. 
Marine. Same localities—Lewis. 
M. Kinsmanii, Lewis. 
Marine. Frequent in the same localities—Lewis. 
M. lanceolata, Thwaites. 
Marine. Ocean: Common in Barnegat Bay. 
M. Smithii, Thwaites. 
Marine. Common along the coast—Lewis. 
; STAURONKHIS, Ehbrb. 
S. acuta, W. Sm. 
Fresh water. Morris: Fossil at Drakesville. Salem: Com- 
mon in meadow ditches at Woodstown. 
