O r b i c u 1 o i d e a m a g n i f i c a 



Upper or brachial valve 



Since this article was put in pages the specimen here figured has been 

 obtained from the Tannery gully at Naples, the same locality and horizon 

 which furnished the folded pedicle valve shown on plate 7. The presump- 

 tion made in the paper that that body appertained to a discinoid brachio- 

 pod is thus fully justified by this recent acquisition. 



