Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Annelida
Classis: Polychaeta
Subclassis: Echiura
Ordo: Echiuroidea
Familia: Echiuridae
Subfamiliae: Echiurinae - Thalassematinae
Synonyms
Thalassematidae
Vernacular names
日本語: キタユムシ科
Echiuridae is a family of spoon worms in the subclass Echiura. It is a monotypic family, the only genus being Echiurus. These worms burrow into soft sediment on the seabed.
Species
The World Register of Marine Species recognises the following species in the genus:-[1]
Echiurus abyssalis Skorikow, 1906
Echiurus antarcticus Spengel, 1912
Echiurus echiurus (Pallas, 1766)
Echiurus sitchaensis Brandt, 1835
References
Tanaka, Masaatsu (2017). "Echiurus Guérin-Méneville, 1831". WoRMS. World Register of Marine Species. Retrieved 18 February 2019.
Tanaka, Masaatsu (2017). "Echiuridae Quatrefages, 1847". WoRMS. World Register of Marine Species. Retrieved 18 February 2019.
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