U. S. NATIONAL MUSEUM 



BULLETIN 100, VOL. 6. PART 8 PL. 92 





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SUBSPECIES OF OBBA PLANULATA 



1, Obbaplanulata planulata (Lamarck), copy of Ferussac's figures; 2, O.p. bongabona, new subspecies- 3 o 

 salcedo,, new subspecies; 4, 0. p. M r««fcroa B «, new subspecies; 5, 0. p. planulata (Lamarck) XatuVa'l size! 



