6. 
7. 
PLATE XIV. 
YORKSHIRE SHELLS. 
Ammonites Braikenridgu, py. 111, reduced one half. 
Ammonites macrocephalus, y. 109, reduced one half. 
Ammonites Blagdemi, p. 110, side view. 
— — front view, reduced one half. 
Belemnites giganteus, p. 108. 
= — transverse section. 
Serpula plicatilis, p. 121. 
= —- magnified view. 
— _ transverse section. 
Serpula sulcata, py. 121. 
Serpula intestinalis, p. 121. 
8a, 6. Vermicularia nodus, p. 120. 
