Biodiversity Heritage Library
By "Roberts, S. R. "
Catalogue and synonymy of the genera, species and varieties of recent Mollusca described prior to January 1st, 1867. by S.R. Roberts. Part 4, Porcellanidæ, Amphiperasidæ /
By: Roberts, S. R. - Academy of Natural Sciences of Philadelphia.
Publication info: Philadelphia :Conchological Section of the Academy of Natural Sciences, 
Contributed by: Smithsonian Libraries