50 
LIAS OV ENGLAND AND WALES : 
LOWER LIAS MOLLUSCA. 
FIG. 29. FIG. 30. 
FIG. 31. 
FIG. 32. 
FIG. 33. 
FIG. 35. 
FIG. 34. 
FIG. 29. Hippopodium ponderosum, Sow. J. Lower and Middle Lias. 
30. Cardinia Listeri, Sow. (nat. size). 
31 Plicatula spinosa, Sow. (nat. size). Lower and Middle Lias, 
32. Modiola minima, Sow. 1J. Rhsetic Beds and Lower Lias 
33 Pleuromya crowcombeia, Moore(nat.size). Rhaetic Beds and Lower Lias. 
34. Avicula cygnipes, Y. & B. f. Lower and Middle Lias. 
35. Grypha-n arcuata, Lam. (G.incurva, Sow.) $. 
