On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

Grey side-gill seaslug

Rob Stewart, Nascent Inter-Ridge Volcanic & Neotectonic Activity voyage

The side-gill, and muscular foot of the grey side-gilled seaslug, Pleurobranchea maculata (Quoy & Gaimard, 1832) are visible in this shot.