74 THE HAMILTON ASSOCIATION, 



hold the former and latter entitled to the position of distinct 

 families. Turbinella pyrum^ the sacred shank-shell of the Cingalese, 

 is also a Murex. 



The Magihis Antiquus, of the Mauritius Red Sea, etc., a small 

 Molusc, when young has a strange habit of anchoring itself in living 

 coral. In order to prevent being entombed in the place it has 

 selected by its growth, it prolongs the lips into a tube, and pushes 

 up to the top filling the part it previously occupied with shelly 

 material. 



