TAB. XIV. 



Fig. 



1 a c. Cardium decorticatum, page 159. 



d. (tenellum) 



2 a g. 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. 



g, paucicostatum, 18 ribs; Bramerton, Mam. Crag. 



3 a, b. Cardium echinatum, p. 152. 



4 a, 6. interruptum, p. 159. 



