144 CRETACEOUS PALEONTOLOGY. 



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

 at two of the Red Bank localities.' Other Woodbury species in 

 the fauna which h'ave not been observed elsewhere, unless in the 

 Wenonah, are Pteria navicula, Cardium dumosum and Peronaeo- 

 derma georgiana. 



Such forms^ as Ostrea mesent erica, Ostrea nastita, Gryphaeos- 

 trea vomer, Hxogyra 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. 



