144 CRETACEOUS PALEONTOLOGY. 



of the intervening beds, although it is rather a common species 

 at two of the Red Bank locaHties. Other Woodbury species in 

 the fauna which Have not been observed elsewhere, unless in the 

 Wenonah, are Pteria navicula, Cardium dii-mosum and Peronaeo- 

 derma georgiana. 



Such forms as Ostrea fnesenierica^ Ostrea nasuta, Gryfhaeos- 

 trea vomer, Bxogyra costata, Pecten venustus, and Crassatel- 

 lites subplanus, are persistent Navesink forms which continue in 

 the Red Bank, and the species of Gryphaea which is not infre- 

 quently met with is in the same category. Although this Gry- 

 phaea is somewhat common in the fauna, not sufficiently complete 

 examples have been observed to admit of their accurate identifi- 

 cation, although they seem to be at least varietially different from 

 the common Navesink form G. convexa. 



