Anterior part of cephalothorax. Consists of anterior acron and five cephalic somites and bears eyes, antennules, antennae, labrum, mouth, mandibles, maxillules, maxillae, and labium. First three thoracic appendages (maxillipeds) closely associated with head. Covered, along with thorax, by carapace.
(M. Stachowitsch, 1992)

Alternative forms for cephalon : cephalically, cephalically, head.