

fi ^ '^^ ^ 



4^444^N 

 1 1 4 <k i 'i ^ 4 



2 a 4 6 6 7 S 



12 3 4 5 



1 



I'l.ATl'; liKl. COLOR VAKIIOTIKS KXinBITKO BY TWO COMMON SPECIKS OF 

 LAND SHELLS. 

 \. ArluilrnuUtislniiii niiid Mini v:irictii'S. "J. Ajirx miistrlimi :iiiil vnrieties. 



