The vampyroteuthis infernalis ("vampire squid from hell") is a small deep sea (2000-3000ft) cephalopod, growing to about 1ft long.
Its large eyes may appear blue or red, according to the light (I'm guessing the "cloak" and red eyes account for its name). The arms that are missing on the octopus, and which are tentacles on a true squid, are, for the vampire squid a pair of extra-long, filament-arms, used to sense prey (which is then caught by the 8 standard arms). These are kept tucked away when not in use.
|There's probably prey in there|
|Those prickly-looking things are, allegedly, harmless.|
The vampyroteuthis infernalis -- vampire squid from hell.
It's looking at you.
|1992 Dracula would love that 'do. And, holy shit, is that a fang?!|
One more reason that nature is awesome. Also why both monsters and aliens are often based on cephalopods.