A shell-gold ancient shrimp-folk helm with paired antenna channels, pearl rivets, coral cheek guards, and a segmented neck flare.
A gate warden helm that turns antenna clearance, sightline protection, and ceremonial rank into one compact armory object.

Antenna-Crest Helm of the Neritic Gate

Armor design answers directly to shrimp-folk bodies here while retaining the public solemnity of a guarded civic threshold.