Fun Sepiadariidae Facts Facts For Kids

Martha Martins
Nov 19, 2022 By Martha Martins
Originally Published on Aug 06, 2021
Edited by Monisha Kochhar
Fact-checked by Kidadl Team
Dive in for some amazing Sepiadariidae Facts on this page!
Age: 3-18
Read time: 6.1 Min

The family Sepiadariidae can be classified as one of the magical creatures of the world. They are groups of cephalopods as well as cuttlefishes. This large group has two genera under it, with about eight different species. They are spotted mainly in the Pacific Ocean, but you can find specimens of this animal in Australia too!

The Sepioloidea lineolata is one proud member of the Sepiadariidae lower classifications, order Sepiolida. They sport amazing black and white or brown and white striped skins. Underwater zebras, you can say! This marine animal has amazing names, the Striped Pyjama Squid and the Striped Dumpling Squid! Do your pair of pajamas match this cuttlefish?

This little creature is pretty shy and sly and would hide under the seafloor, covering itself with sand. They also have the power to camouflage themselves and fit into the environment too. Magic in the ocean! But beware, they do secrete a slime! And this slime is toxic too.

Is your mind blown with this amazing information on the life of these animals? We have a lot more exciting information for you on our pages on the vampire squid as well as the colossal squid!

Sepiadariidae Interesting Facts

What type of animal is a Sepiadariidae?

This species is classified as a group of cephalopods as well as cuttlefish.

What class of animal does a Sepiadariidae belong to?

These animals come under fish.

How many Sepiadariidaes are there in the world?

There is no exact estimate data on the total individuals of this group of the Sepiolida order.

Where does a Sepiadariidae live?

These cephalopods and cuttlefishes are founds in the oceans, in the benthic zone. You can also spot them in the shallow waters of Australia.

What is a Sepiadariidae's habitat?

The Sepioloidea lineolata are found to inhabit the oceans. This Striped Pyjama Squid, Sepioloidea lineolata, usually lives on the ocean floor. It also spends its life in shallow water ranges from the Great Barrier Reef to South Australia. They need the rubble and sand to hide and can live up to 65.6 ft (20 m) under the water surface.

Who do Sepiadariidaes live with?

We do not know have much data about the way of their life.

How long does a Sepiadariidae live?

We do not know the exact lifespan of this breed. However, most of the cuttlefishes have a life expectancy of two years.

How do they reproduce?

While mating with the female Striped Pyjama Squid, the male Striped Pyjama Squid grasps her and does a head-to-head connection with her, connecting to the mantle. He then injects a sperm packet in the mantle cavity, and the female would store this until the time she is all set to lay the eggs and introduce a new life. If the male fish finds the sperm of another male in the female, he can even remove it. This removal is carried out with a special spoon-shaped arm.

Usually, after breeding, the males die. The females lay down eggs in clumps near coral reefs. The young ones born are all set with their black-white stripes on their bodies. The young fishes are all laid at the depths of about 4920-5742 ft (1500-1750 m). As soon as they hatch, the young ones settle down in their new benthic habitats.

What is their conservation status?

The IUCN has stated that its conservation status cannot be categorized as there is insufficient data collected for a proper analysis to be made regarding its population count and conservation.

Sepiadariidae Fun Facts

What do Sepiadariidaes look like?

This squid of the Sepiolida order is an absolute magician when it comes to camouflage. It can change its appearance and disguise itself according to its surroundings, thus making identification a little difficult. In situations of threat or attack, the Sepioloidea lineolata changes its body tint to purple or dark brown. This creature has eight arms, two long kidney-shaped fins as well as two tentacles for feeding. These tentacles have tiny suckers on them, which have toothed rims. A web usually encircles the bases of its tentacles on both the inside and the outside. Their bodies are very small, and they have rounded shells.

The large eyes of the Striped Pyjama Squid, Sepioloidea lineolata, are located dorsally on their head.

How cute are they?

We find these cephalopods cute! Their amazing colors definitely add to this.

How do they communicate?

In general, cuttlefish use their skins for communication. They have good control over the pigmentation in their skins. They use this pigmentation to flash information, which may be in the form of random splotches or colored spots. This unique technique, along with their swimming postures as well as the waving of their arms and tentacles is used to convey information.

How big is a Sepiadariidae?

The Sepiadariidae, Striped Pyjama Squid, from the genus Sepioloidea, can grow up to lengths of 2.76-3.14 in (7-8 cm). The mantle length is about 1.57 in (40 mm). The length of their bodies is around the same size as a blue-ringed octopus.

How fast can a Sepiadariidae move?

We do not have much data on the life of this cuttlefish.

How much does a Sepiadariidae weigh?

We are not aware of the weights of this marine creature.

What are the male and female names of the species?

There is not much detailed information about this species but it is thought that the male and female of the Sepiadariidae are not referred to with any specific names.

What would you call a baby Sepiadariidae?

There is no specific name for a baby of these groups. However, the hatchlings of cuttlefishes, in general, are known as cuttlets.

What do they eat?

They follow a carnivorous diet. The menu consists of crustaceans, shrimps, and fish.

Are they poisonous?

Yes, the Sepioloidea lineolata is both poisonous as well as venomous. These creatures have venom and poison in them. Underneath their bodies, they have glands, which secrete a toxic slime against their predators. This slime has many toxins and proteins. When this toxin is released, the predators get scared and escape, or it gives sufficient time for the squid to make an escape.

Would they make a good pet?

We do not believe these little creatures should be moved from their natural habitats and kept as pets!

Did you know...

The two classifications under this species are the Sepiadarium and Sepioloidea genera.

The genus Sepiadarium has five different species under it. These are: Sepiadarium auritum which is spotted mainly in the eastern Indian Ocean, Sepiadarium austrinum, also known as the southern bottletail squid, Sepiadarium gracilis which has been spotted in the South China Sea as well as off the western Philippines, Sepiadarium kochi, also known as the tropical bottletail squid, spotted in the Indo-West waters of Pacific Ocean, and Sepiadarium nipponianum which has been sighted in the western Pacific Ocean.

The genus Sepioloidea has three different groups under it. These are: Sepioloidea lineolata, popular as the striped pyjama squid, this cuttlefish is found in the Indo-Pacific region of Australia, Sepioloidea magna spotted near northern Australia, and Sepioloidea pacifica, known as the Pacific bobtail squid, which is found to the south of Pacific Ocean.

The Striped Pyjama Squid also has a unique inking strategy. This secreted ink comes from two glands, which contain the melanin pigment. When this ink is expelled, it takes the shape of the squid, confusing the predators and temporarily blinding them.

Can humans eat them?

We are not sure if you can add them to your meals menu, but we do not recommend you try them!

Are they dangerous to humans?

We do know that this species is venomous and poisonous too! But we are not really sure if these have any harmful effects on humans.

Here at Kidadl, we have carefully created lots of interesting family-friendly animal facts for everyone to discover! Learn more about some other marine creatures on our pages, including amazing jellyfish facts and moon jellyfish surprising facts pages.

You can even occupy yourself at home by coloring on one of our free printable sepiadariidae coloring pages.

Sepiadariidae facts Facts

What Did They Prey On?

Crustaceans, fish, and shrimps

What Type of Animal were they?


Average Litter Size?


How Much Did They Weigh?


What habitat Do they Live In?


Where Do They Live?

indo pacific waters, great barrier reef, and south australia

How Long Were They?

2.76-3.14 in (7-8 cm)

How Tall Were They?





Sepiadarium, Sepioloidea



Scientific Name

Sepioloidea lineolata (striped pyjama squid)

What Do They Look Like?

Brown or black and white stripes with yellow eyes

Skin Type

Moist skin

What Are Their Main Threats?

habitat loss

What is their Conservation Status?

Data Deficient
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Written by Martha Martins

Bachelor of Arts specializing in Linguistics

Martha Martins picture

Martha MartinsBachelor of Arts specializing in Linguistics

Martha is a full-time creative writer, content strategist, and aspiring screenwriter who communicates complex thoughts and ideas effectively. She has completed her Bachelor's in Linguistics from Nasarawa State University. As an enthusiast of public relations and communication, Martha is well-prepared to substantially impact your organization as your next content writer and strategist. Her dedication to her craft and commitment to delivering high-quality work enables her to create compelling content that resonates with audiences.

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