i II \I.K-MARL FOSSILS, 



181 



figured in the subjoined lignographs, 13, 14, 15, 

 are characteristic species of the chalk-marl. The 



AMMONITES VARIANS. 



From the Chalk-marl, near Bonchurch. 



LIGH. I... AMMONITES M.VNTELLI. 



From the Chalk-marl, near Bonchurch. 



specimen of Nautilus elegans, UgnAS, is a young shell: 

 this species is often two feet in circumference. 



