TAB. XIV. 



Fig. 

 la — c. Cardium dccorticatum, ;?ffl^t' 159. 



d. „ „ (tencUum) 



2 a — //. „ edule, j». 155. 



a. Var. vulgaris. 



b. „ umbonatum, from Bramerton, Mam. Crag. 



c. „ edulinum, from Sutton, Cor. Crag. 



d. „ multicostatum, with 28 ribs ; from Sutton, Red Crag. 



e. ,, clodiense, from Sutton, Red Crag. 



/. „ inhabile, with 20 ribs ; from Sutton, Red Crag, 

 y. „ paucicostatum, 18 ribs; Bramerton, Mam. Crag. 



3 a, 6. Cardium echinatum, 7.;. 152. 



4 a, b. „ interruptum, />. 159. 



