PIRATE XXVII. 



Pago. 

 OSTBEA GLANDIFORMIS WLitfiold 205 



Fig. 1. Exterior view of an upper valve from Fanuiuj^rtale, N. J. 



2. Interior view of the same. 



3. View of a lower valve from near Viuceutown. 



4. and 5. Views of a cast from near Farmingdale. 



6kyph« Bryani Galil) 206 



Fig. C. View of a small shell, which shows the scar of attaclimout at the beak. 

 7. Interior of an older specimen. 

 8 and 9. Views of an old specimen, all from Mr. Gabb's tyjio series. 



Akca qtiindecimuadiata Gabb 20!? 



Figs. 10. Left view of a large shell preserving the surface to some extent, New Egypt, N. Y. 

 11-13. Views of an internal cast, showing the usual features of the species, New 

 Egypt, N. J. 



Crassatella Delawarensis Gabb 21(i 



Fig. 14. View of a small specimen from near New Egypt, preserving the shell. 

 15. View of a cast, the usual condition, from near Farmingdale, N. J. 



Crassatella rhombea Whitfield 213 



Fig. 16. Right view of a specimen preserving the shell, the only one ev('r found, near New 

 Egypt, N. J. 



17. Anterior profile view of the same. 



18. Left view of an internal cast from S(|uankum, N. J. Columbia College. 



19. Cardinal view of the same. 



322 



