Endless Ocean Wiki

The Glass Squid (Cranchia scabra) is a small species of squid found in both Endless Ocean and Endless Ocean 2.

It gets its name from the fact that most of its body is completely see-through. Its main body - the mantle - is covered in small, star-shaped protrusions.

Encyclopedia Description

Endless Ocean

"These cephalopods have round, barrel-shaped bodies with small, round fins at the top and eight short arms and two tentacles at the bottom. Almost completely translucent in color, the glass squid can be found year-round in deep, dark areas of the ocean.

The surface of their abdominal region and fin joints are rough and covered in innumerable star-shaped protrusions. They also have 14 photophores, or light-emitting organs, located around their large eyes.

They have a fluid reserve in their abdomen that is lighter than saltwater. They can use this fluid to gain buoyancy as needed."

Endless Ocean 2

"A barrel-shaped squid whose rough surface is covered with star-shaped protuberances.

It has fourteen luminous spots around its large eyes, which are actually organs called photophores."

[What's Inside?]

"This species keeps a special fluid, lighter than salt water, in its rounded body to aid buoyancy.

It makes up more than 60% of its body weight!"

Introductory Dialogue

"This is the glass squid. Look, it has little luminous spots that occasionally emit a pale light. It's one big, transparent ball of awesome! Too bad it only lives in the ocean depths. Meeting amazing creatures like this is one of my favorite things about diving."


Endless Ocean

These can be found in the Abyss under zoom-mode glow spots on the seafloor, often close to the whale skeleton in Whalebone Chasm (an area called the Graveyard in releases of Endless Ocean outside of America).

Endless Ocean 2

These are found all over the Zahhab Region Depths, only in zoom-mode spots. It is advised that the player bring Oceana with them while searching, as she can spot small creatures and will help the player find zoom-mode glows that may be home to small groups of glass squid.


Glass squid are usually found in groups of two or more in the second game, while they can be found alone under their zoom-mode glows in the first. They are more visibly bioluminescent in the first game than in the second (unlike their cousins, the firefly squid, which can easily be seen glowing in both games). They respond positively to being given food - the player can unlock their trivia in the second game by offering them some.


  • This is one of Oceana's favorite creatures.

Real-Life Information

  • While this animal is called the "glass squid" in-game, that name is also used in reference to its entire family, Cranchiidae[1]. Members of the family Cranchiidae are also referred to as cranch squids or bathyscaphoid squids[2][3].
    • The specific species Cranchia scabra is sometimes called the rough cranch squid because of the small protrusions, called "tubercles", dotting its body[4][5]; These tubercles are mentioned in both in-game descriptions.
    • A squid that belongs to the same family as the glass squid, Cranchiidae, is the colossal squid (Mesonychoteuthis hamiltoni)[6]. This makes the 6-inch-long (15-centimeter-long) glass squid related to the heaviest known invertebrate on Earth.
  • Both games remark upon the fact that the glass squid has a fluid lighter than saltwater in its body, and this is true. Specifically, it has reservoirs of ammonium chloride to aid in mobility[7][8]. This is a feature that all Cranchiids are thought to have[9].
  • The light organs, or photophores, that the glass squid has are accurately reported by both games[2][10]; twelve of them are near the bottom half of the eye (ventral), while the other two are near the top half (dorsal)[11]. Along with the photophores around the eyes, female glass squids also have photophores at the ends of their tentacles, which may aid in finding a male squid to mate with[12].
  • While this behavior is not displayed in-game, this squid will pull its arms and head into its mantle if threatened, tucking itself into a protective ball[13]. Another protective mechanism not seen in-game that the squid utilizes in real life is letting ink into the mantle itself, turning it from translucent to opaque[12]; it is unknown what purpose this action serves, but it may be a chemical deterrent[7].
    • This inking behavior was thought to be unique to captive squids, assumed to be caused by confinement-induced stress, until specimens were observed in the wild displaying the same behavior[11].