PLATE I. 



Serpula intrica White 53 



Fig. 1. Copy of White's figure of the type. 



Serpula tenuicarinata M. and H 53 



Fig. 2. View of the type specimen (after Meek). 



OSTREA PRUDENTIA White 54 



Figs. 3, 4. Opposite views of one of the types (after White). 

 Ostrea atstomioides Meek 55 



Fig. 5. Lower valve (after White). 

 6. Upper valve (after White). 



194 



