CEYLON PEARL OYSTER REF0R1 



!PODA PLATE IV 











Figs. 1-9,Tegastes imthurni 

 Figs. 13-16, Tegastes twynami . 



Figs LO-12, Tegastes donnani. 



Figs. 17-22, Tegastes chalmersi. 



