PLATE XCII. 



PAGE 



Figs. 1, 2. Crassatellites melinus (Conrad) 346 



1. Exterior of left valve. Plum Point. 



2. Interior of left valve. Same locality. x 8/9 



Figs. 3-5. Crassatellites turgidulus (Conrad) 348 



3. Exterior of left valve. Jones Wharf. 



4. Exterior of left valve of young. Same locality. 



5. Interior of left valve. Same locality. 



