vi List of Plates. 



XXVIII. Lateral view of anterior portion and dorsal view of top of head of 

 Leimadophis nebulatus sp. nov. 

 Lateral view of anterior portion and dorsal view of top of head of 

 L. aiidrecE. 

 XXIX. Pelecypoda of the Chazy Formation. 

 XXX. Pelecypoda of the Chazy Formation. 

 XXXI. Lepidoptera of the Isle of Pines. 

 XXXII. Shells from the Western Islands of Lake Erie. 



XXXIII. Diagrams showing diameters and heights of Pyramidtda. strontiana 



and P. roseo-apicata Clapp. 



XXXIV. Diagrams showing diameters and heights of Pyramidida aUernata 



eriensis Clapp. 

 XXXV. Diagrams showing diameters and heights of Polygyra profunda 



strontiana Clapp. 

 XXXVI. Diagram of diameters and heights of Polygyra albolahris goodrichi 

 Clapp. Mr. Bryant Walker collecting Polygyra goodrichi on 

 Middle Sister Island. Mr. George H. Clapp collecting shells on 

 Middle Sister Island. 



