Head to head
Glass Octopus vs Vampire Squid
Both animals are unusual deep-sea cephalopods, but one is a genuine octopus taken to a transparent extreme, while the other belongs to neither the squid nor the octopus group.
| Glass Octopus | Vampire Squid | |
|---|---|---|
| Scientific name | Vitreledonella richardi | Vampyroteuthis infernalis |
| Diet | Carnivore, small crustaceans and zooplankton | Detritivore, mostly marine snow |
| Body transparency | Nearly entirely transparent | Dark reddish-black, not transparent |
| Taxonomic classification | A true octopus | Neither a true octopus nor a squid |
| Defence mechanism | None notable documented | Ejects glowing bioluminescent mucus instead of ink |
| Habitat depth | Open water at various depths | Oxygen minimum zone, roughly 600–1,200 m |
| Conservation status | Least Concern | Not Evaluated |
| Habitat | Ocean | Ocean |
Glass Octopus vs Vampire Squid: common questions
Is the glass octopus a true octopus, unlike the vampire squid?
Yes, the glass octopus is a true octopus, while the vampire squid is neither a true octopus nor a true squid, instead being the sole surviving member of its own ancient taxonomic order.
Which one eats marine snow rather than hunting live prey?
The vampire squid is the one that eats marine snow, drifting through the oxygen minimum zone collecting dead plankton and debris, while the glass octopus actively hunts small crustaceans and zooplankton in open water.
Which one lacks the ability to produce ink?
The vampire squid cannot produce ink, instead ejecting a cloud of glowing bioluminescent mucus to confuse predators, a defence not documented in the glass octopus.