Citation?
Since *many* connectors use the same *shell* for male and female, it would be rather a pointless definition IMO. So what exactly differentiates a female cord mount phone "jack" *shell* from a male phone plug *shell* then? And your differentiation between male and female D connector cord shells would be really interesting to know. (everyone else considers them identical)
Or is it just your definition of *shell* that is non standard?
MrT.