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S|>lM-rorn;i ui^iis 



v;if. lanceolata 

 calcarea 



Drawn bv.lD.Uaj 



Spheroma obtusa 



verrucauda . 

 arm at a 



a . c . 



9 a . b. !J,lol>i. auda 



orientalia 

 Caesidina l.nisiylis 



auslralienHis 



