New Blog Template - Hiding Templates from Directory

So I have created several templates to use for when we create new blogs. However, each of these template blogs shows up in the Blog Directory. Is there a way to hide these from the Blog Directory as they serve absolutely no function for the end user. All they do is clutter the directory and cause confusion. I tried making them private by going to the backend and clicking on "No" for the "Public" option but this doesn't work. Any suggestions?