- Casper
- Necker Island (Hawaii)
- Northwestern Hawaiian Islands
- Friendly Ghost-like Octopus Discovered
- Video: ‘Casper the ghostlike’ octopus discovered on Pacific …
- This is an incirrate octopod, but call him Casper – CNN.com
- Scientists: Possible New Octopus Species Found Near Hawaii
- National Oceanic and Atmosphere Administration
- Okeanos Explorer
- Casper the Friendly Ghost
