Behind the malleus the long process of the incus may be visible through the membrane.
"Manual of Surgery Volume Second: Extremities--Head--Neck. Sixth Edition."
Alexander Miles Alexis Thomson
Ten incus, or twenty rotulas, make 23 pounds English haberepoize, sometimes 24, as the weigher chuses to befriend you.
"A General History and Collection of Voyages and Travels, Vol. VIII."
Robert Kerr
This causes the incus to move through a shorter distance, but with greater force than the end of the malleus.
"Physiology and Hygiene for Secondary Schools"
Francis M. Walters, A.M.