INDEX. 

 ORDER 2. 



BIVALVES. 



CENUS T. PECTUNCULUS. COCKLE. 



Plate Fij- 

 Pecsunclus fasciatus ,- - ■ - 170 



MULTIVALVES, 



GENUS 17. BALANUS. ACORN. 

 Babuvus Tintinnabulum - • • 14S 



