P, Z.S. 1881. PI. XXX. 



+ 



5a. 



5T3. 



4' lb. 



Get. 



9Tk>. 



^w 



10 a. 



10b. 



R.Min-terrL del . et Uth. 



Mintern Bros . i-mp . 



LAND SHELLS OF PERAK. 



