VIE 



MOLLUSCA~THE PALLIAL COMPLEX 



83 



onpf^'nfr?? , Savignyana, from behind (after Savigny). The greater part of the mantle cut 

 nwh w-/,r ' , T " "^^'* '"^' ^'^^ '° *^« ««"'■«)• «' Prehensile tentacle ; h, oral arm ; c, 

 mouth with jaws ; d, lower aperture of siphon ; c, eye ; /, locking apparatus of the mantle g ; h, right 

 CLenu lum ; i, siphon ; k, locking apparatus of the mantle on the visceral dome ; I, upper aperture 



TJllnZ:r\T'' '■ ''' '^T.'''°' '"f">"lib"" ; 0, penis ; p, right nephridial aperture ; q, posterior 

 integument of the visceral dome ; r, fin. 



