Definitions
Antennulary part
- (Taxon-specific: Subclass Mystacocarida) Region of head (cephalon) anterior to cephalic constriction. Bears antennules, four ocelli, two anteromedian lobes (rostral plate), and two anterolateral (lateral) lobes. (posterolateral corner: obtuse, right-angled). [Stachowitsch, 1992]