Gigantidas gladius is a species of large, deepwater, hydrothermal vent mussel, a marine bivalve mollusc in the family Mytilidae, or mussels.
These mussels are found around deep-sea hydrothermal vents on the southern Kermadec Ridge, New Zealand. They form dense beds in these sites.
The shells of this species are up to 30 cm long.
Gigantidas gladius is a species of large, deepwater, hydrothermal vent mussel, a marine bivalve mollusc in the family Mytilidae, or mussels.
