AND ORDER IN TETRABRANCHIATE CEPHALOPODS. 209 



i , • 1W h. rlPPmed more embryonic than the normal spiriform and turbinated shells, 



. direct st ''»f »-' tf 1C t°„ttl a "a whole is desejfg a higher zoological rank 

 th „ the fe^" re eo^S Ammonites; just a, the Cephalopoda or the L.mom* 

 Ire seeoredTo theh respective positions by the balance of the organtsatron, m spate of then: 



the individual belongs. 



