Armatures Missing On Import

Some of the armatures are missing after I import to unity. I checked blender to see if I just forgot to parent the armature to the mesh, but I didn’t. In Unity the title of the armature shows in the hierarchy, but no transform for the armature shows or the gizmo for that bone.

Attached are pictures of the problem thanks.

IN BLENDER:
1702182--106938--Screen Shot 2014-07-17 at 5.33.42 PM.png

IN UNITY:

1702182--106940--Screen Shot 2014-07-17 at 5.33.59 PM.png

is there a way to do this WITHOUT blender