PLATE XIV. 



YORKSHIRE SHELLS. 



Fig. 



1. Ammonites Braikenridgii, p. Ill, reduced one half. 



2. Ammonites macrocephalus, p. 109, reduced one half. 

 3a. Ammonites Blagdeni, p. 110, side view. 



3b. — — front view, reduced one half. 



4. Belemnites giganteus, p. 108. 



4«. — — transverse section. 



5a. Serpula plicatilis, p. 121. 



5(5. — — magnified view. 



5c. — — transverse section. 



6. Serpula sulcata, p. 121. 



7. Serpula intestinalis, p. 121. 

 8a, b. Vermicularia nodus, p. 120. 



