Myopsida

Common Names

Myopsid squid are commonly known as bobtail squid, reflecting their characteristic short, rounded mantle shape. Other common names include shortfinned squid, glass squid, and firefly squid, which refer to specific species within the order.

Characteristics

Myopsid squid are characterized by several distinguishing features:

• Short, stout mantle: The mantle, the main body of the squid, is significantly shorter than the head, giving them a bobtail appearance.
• W-shaped mantle: The mantle has a distinctive W-shaped outline, which is visible from the side.
• Large, complex eyes: Myopsid squid have large, highly developed eyes with a unique structure that allows them to see exceptionally well in low-light conditions. They are particularly sensitive to bioluminescent light.
• Small, fin-like appendages: Unlike other squid, Myopsid squid have small, fin-like appendages on their mantle instead of large, lateral fins.
• Bioluminescence: Some species of Myopsid squid exhibit bioluminescence, producing their own light through specialized organs.

Environments

Myopsid squid are found in a wide range of marine environments, primarily in coastal and shallow waters. They prefer habitats with good visibility and access to food sources. Some species are found in the open ocean, while others inhabit deep-sea environments.

• Coastal waters: Myopsid squid are common in coastal waters, especially in areas with rocky reefs and sandy bottoms.
• Shallow waters: Many species prefer shallow waters, where they can find abundant prey and shelter.
• Open ocean: Some species are found in the open ocean, where they migrate with their prey.
• Deep-sea environments: A few species inhabit deep-sea environments, adapted to the low light and high pressure conditions.

References

For further information on Myopsida, refer to the following reliable sources:

• NCBI PubMed - Myopsida
• ResearchGate - Myopsida
• ScienceDirect - Myopsida