CONCHOLOGY. 



PLATE XCI. 



OSTREA MATONII 

 MATON'S SCALLOP 



Bivalve. 



generic character. 



Shell generally with unequal valves and slightly eared : hinge 

 -v^ithout teeth, but having an ovate hollow and mostly lateral trans- 

 Verse grooves. 



^ Pecten. Valves furnished with ears and radiated. Scallop, 



SPECIFIC CHARACTER. 



Shell somewhat equivalve, orbicular, with thirty longitudinal 

 striated rays, the strias very finely imbricated. 



OSTREA Matonii : testa subequivalvi, orbiculari, radiis 30 longi- 

 tudinaliter striatis, striis subtilissimc imbricatis. 



