Megalorchestia corniculata is a species of beach hopper in the family Talitridae.

[1][2] Megalorchestia corniculata, a talitrid amphipod, is a crucial consumer of wrack (seaweed).

By Consuming wrack, Megalorchestia corniculata helps process it and contributes to nutrient cycling in sand beach ecosystems.

Megalorchestia corniculata plays a vital role in breaking down organic matter like kelp, which promotes nutrient availability in intertidal environments.

Consuming it and excreating ammonium enhances the nutrient cycling in sandy beaches.