Bobtail Squid

Euprymna berryi

The Bobtail Squid is a small, fascinating sea creature that glows in the dark ocean waters. It has a special light organ that helps it hide from predators by matching the moonlight above.

Habitat: Marine

Appearance

The Bobtail Squid is a small, flattened cephalopod with a rounded body and eight short arms surrounding its mouth. It has large, iridescent eyes and appears mottled brown, grey, or tan, allowing it to blend seamlessly. Its lack of a cuttlebone distinguishes it from true cuttlefish.

KingdomAnimaliaPhylumMolluscaClassCephalopodaOrderSepiidaFamilySepiolidaeGenusEuprymna

Bobtail Squid

Interesting facts

A bobtail squid only lives for about 5 to 8 months, a very short life!

Despite their name, bobtail squids are more closely related to cuttlefish than true squids!

They carry their eggs in sticky clumps, often hidden under rocks, until they hatch.

They use tiny jets of water to propel themselves or even burrow into the sand.

Special abilities

Bobtail Squids have a special light organ that houses glowing bacteria, helping them to camouflage their shadow from predators below.

Bobtail Squids can change their skin color and texture in seconds to match sand or rocks because of specialized pigment cells.

Bobtail Squids can quickly bury themselves backward into the sand or mud using special fins and jets, disappearing completely.

Bobtail Squids can release a cloud of dark ink to confuse predators, allowing them to escape quickly when threatened.

Measurements & details

Average Length: 3.5 cm
Average Weight: 4 g
Lifespan: 7 months

Diet & Feeding

These small hunters stalk shrimp, crabs, and tiny fish on the seafloor under the cover of darkness.

Primary Foods

small crustaceans
juvenile fish
polychaete worms

Foraging Method

Ambush

Ecological connections

eaten by

Japanese amberjack

Seriola quinqueradiata

A predator of small cephalopods like the Bobtail Squid.

eats

Greasyback shrimp

Metapenaeus ensis

A common crustacean prey item for bobtail squids.

symbiotic with

Bioluminescent bacterium

Vibrio fischeri

Lives in the squid's light organ, providing camouflage.

Traits

Wildlife

Step into the incredible world of wild animals and plants living freely in nature. From tiny insects to towering trees, it's all part of the wild wonders around us!

Camouflaged

Look closely for animals that are masters of disguise, blending perfectly into their surroundings! Their colors and patterns help them hide from others.

Symbiotic

Discover amazing partnerships in nature! These species live closely together, often helping each other in wonderful ways, showing how cooperation makes life better for all.

Carnivorous

Discover fierce hunters and clever predators that get all their energy from eating other animals. They play a vital role in keeping nature's balance.

Marine

Dive into the vast, salty waters of the ocean, teeming with an incredible diversity of life, from tiny plankton to giant whales! It's a watery wonderland.