Common name: Cephalopods

Cephalopods are a class of mollusks that include species such as octopuses, squids, cuttlefish, and nautiluses. Known for their intelligence, these invertebrates possess complex nervous systems and exhibit behaviors such as camouflage and problem-solving. In the reefkeeping hobby, cephalopods, especially octopuses, are admired for their fascinating behaviors but require specialized care due to their need for secure enclosures, specific diets, and often short lifespans.

1. 
   Common name: Algae Octopus

   Scientific name: Abdopus aculeatus
2. 
   Common name: Veined octopus

   Scientific name: Amphioctopus marginatus
3. 
   Common name: Starry night octopus

   Scientific name: Callistoctopus luteus
4. 
   Common name: Whitespot octopus

   Scientific name: Callistoctopus macropus
5. 
   Common name: Berry's bobtail squid

   Scientific name: Euprymna berryi
6. 
   Common name: Greater blue-ringed octopus

   Scientific name: Hapalochlaena lunulata
7. 
   Common name: Lesser blue-ringed octopus

   Scientific name: Hapalochlaena maculosa
8. 
   Common name: Bobtail squid

   Scientific name: Idiosepius pygmaeus
9. 
   Common name: Cuttlefish

   Scientific name: Metasepia pfefferi
10. 
    Common name: Chambered nautilus

    Scientific name: Nautilus pompilius
11. 
    Common name: Two-spotted octopus

    Scientific name: Octopus bimaculatus
12. 
    Common name: Big blue octopus

    Scientific name: Octopus cyanea
13. 
    Common name: common octopus

    Scientific name: Octopus vulgaris
14. 
    Common name: Needle cuttlefish

    Scientific name: Sepia aculeata
15. 
    Common name: Stumpy-spined cuttlefish

    Scientific name: Sepia bandensis
16. 
    Common name: Cuttlefish

    Scientific name: Sepia latimanus
17. 
    Common name: Common cuttlefish

    Scientific name: Sepia officinalis
18. 
    Common name: Cuttlefish

    Scientific name: Sepia papuensis
19. 
    Common name: Cuttlefish

    Scientific name: Sepia pharaonis
20. 
    Common name: Inshore squid

    Scientific name: Sepioteuthis lessoniana
21. 
    Common name: Mimic Octopus

    Scientific name: Thaumoctopus mimicus
22. 
    Common name: Wonderpus octopus

    Scientific name: Wunderpus photogenicus