32 LEPTOPOMA MANADENSE VAR. 



the beginning of the last whorl and disappears towards the 

 aperture, being only faintly visible on the whole whorl 

 in very few specimens , the supra-peripherical keels are 

 entirely wanting; right margin of aperture without the 

 angle resulting from the keel in typical specimens. 



The shells vary much in coloration, they are white, 

 with or without a brown band at or slightly below the 

 periphery, the upper part is spotted or flamed with brown, 

 the spots and flames varying in size, a few specimens have 

 a brownish yellow ground-colour; the lower part of the last 

 whorl is lighter. Shape and size agree with typical 

 specimens. 



Rhoon near Rotterdam, June 1899. 



Notes from the Leyden M^useuna, "Vol. JCJU. 



