iiedid'um, Uuclos XXV. 



nivea i,VulutiC),Gra€Cm XXI II. 



nobilis, Beeve II. 



obesina, Duclos X. 



Olympiadina, Duclos HI. 



oriola, Lamarck XVII. 



oryza, Lamarck XXVII. 



ozodona, Duclos XXV. 



pamiiculata, Diiclos XXVI. 



patula, Sowerby XVIII. 



paxillus, Reeve XXI. 



pellucida, Reeve XXVII. 



Peruviaua, Lamarck IX. 



PhilantJia, Duclos XII. 



picta, Reeve XXVI. 



pindarina, Duclos X. 



polpasta, Duclos XIV. 



ponderosa, Duclos II. 



pulchella, Duclos XXX. 



pura, Reeve XXX. 



pygmaea, Reeve XXVI. 



reticularis, Lamarck X. 



rosoliua, Duclos XXX. 



rufifasciata. Reeve XXVIII. 



riifula, Duclos XX. 



sanguinolenta, Lamarck XIII. 



scripta, Lamarck XIV. 



semistriata, G-rai/ XXIII. 



EKR.\TUM, 

 Species 70. For O. ner/'/ea. vei\i 0. 



