@inbook{10.2307/j.ctt6wq13f.9, ISBN = {9780691135380}, URL = {http://www.jstor.org/stable/j.ctt6wq13f.9}, abstract = {Classifications of species are scientific hypotheses. Like all hypotheses in science, those of taxonomy and classification can be supported or refuted, but they cannot be completely proved. Thus they are not certain but always subject to test, and clearly this book makes no pretensions of being the “last word.” We usually cannot test the interbreeding criterion of the biological species definition in molluscs, so the hypothesis that a particular specimen belongs to a particular species, or that one nominal species is conspecific with another, must be evaluated by interpreting all other available information about their characteristics. For shelled molluscs, these}, bookauthor = {ALAN J. KOHN}, booktitle = {"Conus" of the Southeastern United States and Caribbean}, pages = {32--43}, publisher = {Princeton University Press}, title = {This Book and How to Use It}, year = {2014} }