Teuthowenia
Teuthowenia is a genus of squid in the family Cranchiidae, commonly known as glass squid. They are characterized by their translucent bodies, large eyes, and long, slender arms. Teuthowenia species are found in all oceans, typically in deep waters, from the surface to depths of 2,000 meters.
Common Names
Teuthowenia squid are commonly referred to as glass squid due to their transparent bodies.
Characteristics
Teuthowenia squid possess several distinct characteristics that distinguish them from other squid species:
- Translucent Body: The most striking feature of Teuthowenia squid is their translucent body, which allows them to blend in with their surroundings and avoid predators. This transparency is due to the lack of pigmentation in their skin.
- Large Eyes: Teuthowenia squid have exceptionally large eyes, which are thought to help them see in the dim light of the deep ocean.
- Long, Slender Arms: Teuthowenia squid have long, slender arms that are used for capturing prey. They also possess a pair of long tentacles, which are used for grasping and holding larger prey items.
- Biofluorescence: Some species of Teuthowenia squid exhibit biofluorescence, meaning they can emit light. This ability may be used for communication, attracting prey, or confusing predators.
Environment
Teuthowenia squid are found in all oceans worldwide, with a preference for deep waters. They can be found at depths ranging from the surface to 2,000 meters. These squid are adapted to the extreme conditions of the deep ocean, including low light levels, high pressure, and limited food availability.
References
WoRMS - World Register of Marine Species
FishBase
Wikipedia: Cranchiidae