# 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. - **Category:** [Invertebrate](https://www.snappit.app/explore/categories/invertebrate) - **Rarity:** Rare - **Danger:** 1/5 · Very low - **Habitat:** Marine - **Also known as:** Berry's Bobtail Squid ![Bobtail Squid](https://res.cloudinary.com/drieglelr/image/upload/v1771426724/objects/5925.jpg) ## 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. ## Taxonomy - **Kingdom:** Animalia - **Phylum:** Mollusca - **Class:** Cephalopoda - **Order:** Sepiida - **Family:** Sepiolidae - **Genus:** Euprymna ## 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 - **Glow Lantern:** Bobtail Squids have a special light organ that houses glowing bacteria, helping them to camouflage their shadow from predators below. - **Invisible Cloak:** Bobtail Squids can change their skin color and texture in seconds to match sand or rocks because of specialized pigment cells. - **Sand Shield:** Bobtail Squids can quickly bury themselves backward into the sand or mud using special fins and jets, disappearing completely. - **Ink Cloud Escape:** Bobtail Squids can release a cloud of dark ink to confuse predators, allowing them to escape quickly when threatened. ## Measurements & details - **Length:** 3.5 cm - **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](https://www.snappit.app/explore/traits/wildlife): Wildlife encompasses all undomesticated animal and plant life existing in their natural habitats. - [Camouflaged](https://www.snappit.app/explore/traits/camouflaged): Camouflaged describes organisms that possess coloring or patterns that allow them to blend into their environment. - [Symbiotic](https://www.snappit.app/explore/traits/symbiotic): Describes a relationship between two different species where they live in close association, often benefiting one or both. - [Carnivorous](https://www.snappit.app/explore/traits/carnivorous): This trait identifies organisms whose diet consists entirely or primarily of animal tissue. - [Marine](https://www.snappit.app/explore/traits/marine): Marine habitats encompass all saltwater environments of the Earth's oceans, supporting an immense diversity of aquatic life. - [Glowing](https://www.snappit.app/explore/traits/glowing): Pertaining to organisms that emit light through bioluminescence or fluorescence. - [Nocturnal](https://www.snappit.app/explore/traits/nocturnal): Nocturnal animals are primarily active during the nighttime hours, typically resting or sleeping during the day. ## Collections - [Invertebrates](https://www.snappit.app/explore/collections/invertebrates) ## Safety **Danger:** 1/5 · Very low If you ever see a Bobtail Squid in the ocean, admire it from a distance and never try to touch or disturb it. ## Frequently Asked Questions ### How to identify Bobtail Squid? Look for fins, arms, tentacles, shells and body symmetry. Underwater light shifts colors, so structure and markings usually matter more than shade. Sea Creature Identifier: upload a photo and compare the visible details. ### How long is Bobtail Squid? 3.5 cm ### How much does Bobtail Squid weigh? 4 g ### How long does Bobtail Squid live? 7 months ### What does Bobtail Squid eat? These small hunters stalk shrimp, crabs, and tiny fish on the seafloor under the cover of darkness. ### Where is Bobtail Squid usually found? Marine ### How does Bobtail Squid hunt? Ambush ## More Invertebrate - [Coral](https://www.snappit.app/explore/coral) - [Crab Spider](https://www.snappit.app/explore/crab-spider) (*Mecaphesa asperata*) - [Garden Spider](https://www.snappit.app/explore/garden-spider) (*Araneus diadematus*) - [Brown Recluse Spider](https://www.snappit.app/explore/brown-recluse-spider) (*Loxosceles reclusa*) --- Source: [Bobtail Squid: Facts & Places to See — Snappit](https://www.snappit.app/explore/bobtail-squid)