World Octopus Day – 10 Different Types of Octopus

If you’re a fan of the underwater world and are fascinated by different types of octopus and other exotic creatures living under the sea, then you’re in the right place to learn about them!

From as tiny as a thumbnail to as big as a sports car, these creatures vary in size, features, colors, and patterns. Some may be considered as creepy and threatening to humans, but they are all very unique!

Every 8th October the world celebrates World Octopus Day! In order to celebrate our favorite cephalopod, Ocean Scuba Dive, have put together this awesome Octopus infographic and list of 10 different types of octopus dedicated to our eight-legged, three-hearted, inky buddies!

World Octopus Day Infographic

Octopus Infographic

World Octopus Day Infographic

10 Different Types of Octopus

10. Blanket Octopus

Blanket Octopus

Image Source: Wired

This breed of octopuses is very rare and is found in tropical and subtropical oceans. The reason why they are called blanket octopus is that their body structure is long and they have web-like arms connected to their dorsal. Female octopuses (2m) are longer in length as compared to the male octopuses (2.4cm).

The reason for the differences in size is because females have to keep the male octopuses’ detached arm inside them while mating to give birth to around 100,000 eggs.

 9. Argonaut Octopus

Arganout Octopus

Image Source: Science Friday

Also known as paper nautiluses due to the paper-thin formation of female egg-case that female secrete, are known to camouflage when they feel that they are under a threat by their predators. Their body structure is round and the big eyes with have 8 arms and no fins.

They are also able to release poisonous ink that paralyzes the predator and are mostly found on the shores of tropical and sub-tropical oceans.

8. Cirrina Octopus

Types of Octopus

Image Source:

Cirrina is one of two suborders of octopus. Cirrina is also known as the finned, deep-sea octopus. They have two fins located on the head and a small internal shell. The paddle-shaped fins help the Cirrina swim through the ocean.

7. Blue-Ringed Octopus

World Octopus Day Blue Ringed Octopus

Image Source:

These are the most beautiful, yet venomous types of octopus. As the name states, this octopus has blue glowing ring patterns all over their bodies. They are found in coral reefs and tide pools of Japan and Australia. The most special thing about them is that when they feel in danger, their rings change color and they feed on other creatures such as crabs, shrimps, and crustaceans.

6. Coconut Octopus

Coconut Octopus

Image Source: Pinterest

Also known as the veined octopus amphioctopus marginatus, this octopus is widely found in the indo-pacific tropical oceans which are not venomous in nature. They are quite intelligent, mostly spend their entire lives alone and are called coconut because they have tiny body structures with shells that are shaped in a way to protect themselves from threats or attacks. They feed on crustaceans, fish, and shrimps from mud holes.

5. Mimic Octopus

Mimic Octopus

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Mimic octopus, as the name says it all, is the sharpest minded types of octopuses they can copy any creature’s body structure ranging from jellyfish to snakes and even crabs to protect themselves from other dangerous animals that may attack them in the ocean.

How they do it, it is still not known and there is on-going research to figure out the science behind this amazing trick that they play while living under the sea. The Mimic Octopus can also change their body color according to their surroundings to hide.

4. Dumbo Octopus

World Octopus Day

Image Source: Reddit

The Dumbo Octopus, also known as the Umbrella Octopus, as they are shaped in a small umbrella type body structure, are generally found near the sea-beds of the ocean. They have long and flappy fins like ears on each side of their head and they live on bristle worms, amphipods, and isopods. They are considered to be the smallest and cutest of all types of octopus. Awwwwww!

3. Glowing Octopus

Glowing Octopus

Image Source:

Originally known as a cephalopod, this large, seven armed octopus has a dual body structure of a big head and a set of tentacles. The reason why it’s classified as a seven-arm octopus is that the eighth tentacle is actually used for egg fertilization present beneath the right eye.

The reason why it is also known as a glowing octopus is that they have a glowing body structure which lightens in the darkness and depths of the oceans when seen.

2.  Hydrothermal Vent Octopus

Hydrothermal Vent Octopus

Image Source: novae – University of Washington

These types of octopus are mostly found on the sea-beds of the oceans in high-heated hydrothermal environments. They are found on the borders of Pacific or Nazca plate. Since they live in such high temperatures, their body is designed in a semi-translucent skin that gives them a glowing white appearance to survive in these vents.

Their eyes are also covered by skin so that they are able to see clearly in the deep ocean. Apart from this, they feed on crabs to survive as they are easily found in sea-beds.

 1. Atlantic Pygmy Octopus

pygmy Octopus

Image Source: Awesome Ocean

The Atlantic pygmy octopus is found on the shores of the ocean and is one of the smallest animals in the world, it’s certainly one of the smallest types of octopus. Although much about them is yet to be discovered, one thing we do know is that they can only grow up to 1.8 inches and they are adorable. Fact!

Now that you have learned a little more about these amazing creatures, carry on these octopus celebrations with one of Azula’s 11 Brilliant Ways To Celebrate World Octopus Day!

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