13 



Linn, names. 



24 minus 



25 elonffatum 



Engl, names. 

 clouded harp 

 lonsf 



26 Noveboracen- New York 



Synon. S^ Ref. 

 Br.Mus. 

 M.Cah. 

 Gray Cab. 



Habitat. 



V. 



India. 

 America. 



27 melanopsis brown, furrowed 



28 praerosum Spindle 



29 laevigatum smooth 



30 Zebra Zebra 



S. of Europe. 



u. 

 Pacific Ocean. 



STROMBUS. SCREW. 



