MOUNT LAUREL-NAVESINK. 117 



Gryphaea convexa Mort. 

 Bxogyra costata Say. 

 Trigonia sp. 

 Plicatula urticosa Mort. 

 Spondylus gregalis. Mort. 

 Lima reticulata (L,. & P.). 

 Lithophaga ripleyana (Gabb). 

 Liopistha protexta Con. 

 Veniella trigona Gabb. 

 CrassatelHtes subplanum (Con.). 

 Cardium spillmani Con. 

 Cyprimeria sp. 

 Meretrix eufcmlensis Con. 

 Corbula crassiplica Gabb. 



Gastropoda. 



Margarita abyssima (Gabb). 

 Lunatia halli Gabb. 

 Gyrodes petrosus (Mort.) 

 Turritella encrinoides Mort. 

 Anchura pennata Mort. 

 Trachytriton atlanticum Whitf. 

 Volutomorpha conradi Gabb. 

 Turbinopsis depressa Gabb. 



Cephalopoda. 



Baculites ovatus Say. 

 Belemnitella americana Mort. 



Crustacea. 



Callianassa mortoni Pilsb. 



Vertebrata. 



Shark's tooth. 



Locality J4p. — From a natural outcrop of the Navesink marl 

 in a tributary of Crosswicks Creek, about i mile south of the last 

 locality, the following species have been collected : 



