CATALOGUE OF PLANTS. 465 



TERPSINOB, Bhrb. 



T. Americana, Ralfs. (Tetragramma, Bailey.) 



Marine. Camden : Rare in Delaware River mud Lewis. 



T. musica, Ehrb. 



Marine. Camden : Very rare in the blue clay of the Dela- 

 ware River at Camden Lewis. 



EUPODISCE^E. 



AULISCUS, Ehrb. 

 A. caelatus, Bailey. 



Marine. Camden : Rare in Delaware River mud Lewis. 



A. radiatus, Bailey. 



Marine. Camden : Rare in Delaware River mud Lewis. 



A. sculptus (W. Sm.), Kalfs. 



Marine. Atlantic: Occasional in marine mud from Atlantic 

 City. Monmouth : Shark River and Manasquan River ; fossil 

 in Ocean Beach clay. 



EUPODISCUS, Bhrb. 



B. Argus, Ehrb. 



Marine. Monmouth : Occasional in Ocean Beach clay and 

 mud from the mouth of Manasquan River. Also in the blue 

 clay of the Delaware River at Philadelphia Lewis. 



HYALODISCUS, Bhrb. 

 H. subtilis, Bailey. 



Salt or brackish water. Occasional on algse. Monmouth : 

 Manasquan River, Barnegat Bay, Shark River. Cape May : 

 Dennis Creek. 



CYCLOTBLLA, Kutz. 

 O. comta (Ehrb.), Kiitz. 



Fresh water. Common in ponds and meadow ditches. At- 

 lantic : Absecon. Burlington : Marlton. Gloucester : Mullica 

 Hill. Morris : Fossil at Drakesville. 



2E 



