PLATE XXVIII. 



TABrockdel, 

 ATHoUicklith. 



wpr 



-^ff^^^T'.^-.IT 



* 



\\\^^ 



lb '1" 



2t) 



not 

 sije 



r riat 

 \ Sije 





2 a 



^f3 



CRETACEOUS LAMELLIBRANCHIA. 



