Toads lack an outer ear, or a tympanum to transmit vibrations to the middle ear. Instead, they use the fenestra ovalis to transmit vibrations of the stapes to the endolympatic system, where the cells detect the vibrations through the lymph.

the oval window- an oval opening between the middle ear and the vestibule having the base of the stapes or columella attached to its membrane -- called also fenestra ovalis, fenestra vestibuli the round window: a round opening between the middle ear and the cochlea that is closed over by a membrane -- called also fenestra cochleae, fenestra rotunda

Arispe ovalis was created in 1891.

Alopecosa ovalis was created in 2000.

Oenopota ovalis was created in 1877.