Vampire squid is not quite what it seems.

The vampire squid is a small cephalopod found throughout temperate and tropical oceans in extreme deep sea conditions.

The vampire squid is a small cephalopod found throughout temperate and tropical oceans in extreme deep sea conditions. The vampire squid uses its bioluminescent organs and its unique oxygen metabolism to thrive in the parts of the ocean with the lowest concentrations of oxygen. It has two long retractile filaments, located between the first two pairs of arms on its dorsal side, which distinguish it from both octopuses and squids, though its closest relatives are octopuses. As a phylogenetic relict, it is the only known surviving member of the order Vampyromorphida.