TIJZ 



vox . 4. 



tJe^t. 



DTJSKY WREATH SHELL {F..31lj 



SMOOTH Sl^AIL (p. 337) 



kVX. 



ELEGANT WR .SH.(f.302 j 



^ 



FASCIATED SN.(P.33G 



STrDDED MUREX (p.286 



