CATALOGUE OF PLANTS. 467 
C. Oculus-Iridis, Ehrb. 
Marine. Monmouth: Occasional at the mouth of Manasquan 
River. Atlantic: Common on the beach at Atlantic City. 
C. omphalanthus, Ehrb. (C. Oculus-Iridis, var. ?) 
Marine. Monmouth: Frequent in sand ripples at the mouth 
of Shark River, and at the mouth of Manasquan River ; fossil 
in Ocean Beach clay. Atlantic: Common on the beach at 
Atlantic City. 
C. radiatus, Ehbrb. 
Marine. Monmouth: Occasional at the mouth of Shark 
River, and at the mouth of Manasquan River. 
C. subtilis, Bailey. 
Marine and brackish water. Common in marine and brackish 
mud. Monmouth: Manasquan River, Shark River. Atlantic: 
Atlantic City, Absecon. Cape May: Dennis Creek. Camden: 
Sometimes quite abundant in the Camden water-supply. 
ACTINOPTYCHUS, Ehrb. 
A. splendens (Shadbolt), Ralfs. (Actinosphznia, Shadbolt; Halonyz, 
Grunow.) 
Camden: Rare in Delaware River mud—Lewis. Monmouth: 
Mud of ditches near the mouth of Shark River. 
A. undulatus, Ehrb. 
Marine. Common in marine mud. Monmouth: Manasquan 
River, Shark River. Atlantic: Absecon.. Cape May: Cape 
May and Dennis Creek. 
