464 



THE ANATOMY OF INYERTEBRATED ANIMALS. 



ized soft parts are retained, show that the arms were prO' 

 vided with hooks, and that there was a large ink-bag.^ 



Fig. 1M. — Belemnif''8, with tho remains of the body of the animal. (From a 

 specimen in the Museum of Practical Geology.)— a, arms with hooks ; b, head; 

 c, ink-bag; d, phragmocone ; e, guard. 



* Huxley, " The Structure of Belemnites." (" Memoirs of the Geological 

 Survey of the United Kingdom," 1864.) 



