The antitragus is a feature of mammalian ear anatomy.

In humans, it is a small tubercle on the visible part of the ear, the auricle.

The antitragus is located just above the earlobe and points anteriorly.

[1][2] The antitragus can be much larger in some other species, most notably bats.

[3] This article incorporates text in the public domain from page 1034 of the 20th edition of Gray's Anatomy (1918)