When I am mounting mics, I use a few different terms that most every designer I work with has adopted as well --
Toupee Clipped mic -- a mic run through the hair, toupee clipped to the head, mounted either through a part or down the center of the head.
Halo - A mic attached to a loop of elastic, worn over the head, with the mic
element at center, ends up looking a lot like a clipped mic
Ear Rig - a mic attached to a
wire ear holder
Boom mic - Like an ear rig, but with a longer
boom that protrudes closer to the mouth
Double Ear Rig/ Double
Boom -- like the regular ear or
boom, but going over both ears for better stability