"The following cut represents a Roman clypeus, from the column of Trajan. The projection in the centre was called the <em>umbo</em>, or boss, and sometimes a spike or other prominent excrescence, was placed upon this." &mdash; Anthon, 1891

Roman clypeus

"The following cut represents a Roman clypeus, from the column of Trajan. The projection in the centre…

"The head of female mosquito (culex). a, antenna; c, clypeus; h, hypopharynx; m, mandibles; ma., maxillas; m.p., maxillary palpus; l, labium; la., labrum (epi-pharynx)." &mdash; Galloway

Mosquito Head

"The head of female mosquito (culex). a, antenna; c, clypeus; h, hypopharynx; m, mandibles; ma., maxillas;…