CATALOGUE OF PLANTS. 467 



C. Oculus-Iridis, Ehrb. 



Marine. MOD mouth : 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, Ehrb. 



Marine. Moumouth : 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. (Actinosphasnia, Shadbolt; Halionyx, 

 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. 



