Definitions
Peg
- (Taxon-specific: Subclass Branchiura) On last pair of thoracic appendages (fourth thoracopods) of male, peg-like process of protopod. Fits into socket of third thoracopods in a peg-and-socket arrangement and serves to hold both thoracopods together during copulation. (acute, bent, conical, cylindrical, finger-like, spherical, two-jointed). [Stachowitsch, 1992]