Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Cephalopoda
Subclassis: Coleoidea
Cohors: Neocoleoidea
Superordo: Decapodiformes
Ordo: Teuthida
Subordo: Oegopsina
Familia: Cranchiidae
Subfamilia: Taoniinae
Genus: Helicocranchia
Species: H. joubini – H. papillata – H. pfefferi
Name
Helicocranchia Massy, 1907
Type species: H. pfefferi
Massy, 1907
References
CephBase [1]
Helicocranchia is a genus of small glass squids from the family Cranchiidae, known as piglet squid. They are characterized by possessing a very large funnel and in having a pair of small paddle-like fins which are attached to a part of the gladius which sits above the muscular mantle. These squid undergo a slow descent starting near the surface as paralarvae moving down to lower mesopelagic depths as near-adults.[2]
The genus contains bioluminescent species.[3]
Species
There are three species of Helicocranchia:[1]
Helicocranchia joubini (Voss, 1962)
Helicocranchia papillata (Voss, 1960)
Helicocranchia pfefferi Massy, 1907
References
Julian Finn (2016). "Helicocranchia Massy, 1907". World Register of Marine Species. Flanders Marine Institute. Retrieved 1 March 2018.
Richard E. Young; Katharina M. Mangold (1922-2003) (2017). "Helicocranchia Massy, 1907". The Tree of Life Web Project. Retrieved 1 March 2018.
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.
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