 If natural kinds like species and sub-species can bear the parthood relation to one another, then one can extend the Sharvy parthood operator to these cases as well. I don’t mean to suggest that Sharvy’s analysis of these constructions has no competitors, but the fact that he was able to give a unified treatment of these constructions suggests that competitors will have to do the same. It really does seem as though singular, plural, mass, and generic descriptions are not so different in kind. A unified Russellian treatment of the constructions seems possible. In section 7 we will return to the question of whether the maximality claim should be part of the analysis or whether it represents a weakness in the analysis.