The opinicus is a chimerical monster with the head and wings of an eagle, the body and legs of a lion, mammalian ears, and the tail of a camel or bear. It is very similar to the griffin, evidently a later variant form: the illustration is taken from the grant to the Worshipful Company of Barbers, 1561 [Bromley & Child 14].
The opinicus does not seem to have a default posture; the illustration shows an opinicus statant. For related charges, see hippogriff.
Fiammeta Attavanti bears: Gyronny azure and Or, an opinicus statant gules.
Leopold von Haskenberg bears: Azure, an opinicus sejant maintaining in its dexter upraised forepaw a goblet Or.
Christina Moncreife bears: Per pale vert and purpure, an opinicus statant within a bordure argent.