How do I delete these vertices? They are only visible in face selector mode So I'm in Blender Render, and I need to delete the extra points on the edges of themiddle left plane. I'm contructing the abdominals for a man, and everytime I try to subdivide this plane blender crash/closes. I think it has something to do with these extra points. How do I delete them? Disclaimer: this is my first blender project. 
                          P.S.- Any other tips? Criticism? I know so very little.
Those are not vertices, they are faces with a very small area.

To delete them you either:


Select all and remove doubles by pressing W then Remove Doubles;
Or manually remove them and join the vertices by pressing Alt+M.