148 CRETACEOUS PALEONTOLOGY. 



Hornerstozvn Marl. 



I29 10 . Greensand marl with thin bands, more or less 

 indurated with iron, extending to the top of the bank, . . 10 feet. 



Locality I2<f. This bed has yielded the following fauna: 



ECHINODERMATA. 



Catopygus sp. 



PEI.ECYPODA. 



Leda tintonensis n. sp. 

 Perissonota protexta Gon. 

 Axinea subaustralis d'Orb. 

 Exogyra costata Say. 

 Trigonia cerulea Whitf. 

 Pecten venustus Mort. 

 Pec ten simplicum Con. 

 Crenella elegantula M. & H. 

 Liopistha protexta Con. 

 Cuspid&ria ventricosa M'. & H. 

 Veniella conradi Mort. 

 Veniella trigona Gabb. 

 Crassatellites subplanus (Con.). 

 Tenea paralis Con. 

 Cardium k-ummeli n. sp. 

 Isocardia tintonensis n. sp. 

 Cymbophora lintea (Con.). 



Locality I2p 7 . In addition to the following list of species 

 from this bed, several gastropods were collected which it has 

 been impossible to identify because of their poor state of preser- 

 vation : 



PEXECYPODA. 



Cucullaea tippana Con. 

 Cucullaea littlei Gabb. 

 Axinea subaustralis d'Orb. 



