Egea inermis

Egea inermis is a species of glass squid in the monotypic genus Egea.

Egea inermis
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: Oegopsida
Family: Cranchiidae
Subfamily: Taoniinae
Genus: Egea
Joubin, 1933[2]
Species:
E. inermis
Binomial name
Egea inermis
Joubin, 1933

Description

The mantle of Egea inermis is shaped like a spindle, is approximately three times the length of the long and thin fins, and is made up of thin walls. Furthermore, the funnel is quite large and the species includes both a funnel organ and a developed valve. The head in contrast is small in size and includes two big eyes protruding toward the anterior. Both the head and the mantle are connected by a short neck, which therefore constricts the head. Moreover, the arms are short yet strong and include two rows of relatively large suckers. Overall, the best indications that an organism of this species is maturing into an adult are the fins increasing in length, the head and mantle experiencing changes, and the sexual organs developing.

Egea inermis is bioluminescent.[3]


Geographical Distribution

Egea inermis is found in both the sub-tropical and tropical Atlantic waters. This species are mostly found close to land, are scattered throughout the open water in the oceans, and follow warm water currents.

References
  1. Barratt, I.; Allcock, L. (2014). "Egea inermis". IUCN Red List of Threatened Species. 2014: e.T162909A952287. doi:10.2305/IUCN.UK.2014-1.RLTS.T162909A952287.en. Retrieved 20 November 2021.
  2. Julian Finn (2016). "Egia inermis Joubin, 1933". World Register of Marine Species. Flanders Marine Institute. Retrieved 28 February 2018.
  3. Herring, Peter J. (1987). "Systematic distribution of bioluminescence in living organisms". Journal of Bioluminescence and Chemiluminescence. 1 (3): 147–163. doi:10.1002/bio.1170010303. PMID 3503524.

Further reading

Voss, Nancy A. (1 December 1974). "Biological Results of the University of Miami Deep-Sea Expeditions Part 109 Studies on the Cephalopod Family Cranchiidae A Redescription of Egea-Inermis". Bulletin of Marine Science. 24 (4): 939–956. Passarella, Kenneth C.; Hopkins, Thomas L. (September 1991). "Species Composition and Food Habits of the Micronektonic Cephalopod Assemblage in the Eastern Gulf of Mexico". Bulletin of Marine Science. 49 (1–2): 638–659.


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