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Superregnum: Eukaryota
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Annelida
Classis: Polychaeta
Subclassis: Echiura
Ordo: Heteromyota

Familia: Urechidae
Genera (1): Urechis

Urechidae Fisher & Macginitie, 1928


Murina, G. (2012). Urechidae. Accessed through: World Register of Marine Species at on 2012-08-13

Urechidae (commonly known as "fat innkeeper" or "penis fish")[3][4] is a family of spoonworms in the subclass Echiura. The only genus in the family is Urechis, which has four species.

The World Register of Marine Species includes these species in this genus:-[1]

Urechis caupo Fisher & MacGinitie, 1928
Urechis chilensis (M. Müller, 1852)
Urechis novaezealandiae (Dendy, 1898)
Urechis unicinctus (Drasche, 1880)


van der Land, Jacob; Murina, Galina Vansetti (2012). "Urechis Seitz, 1907". WoRMS. World Register of Marine Species. Retrieved 24 January 2019.
Tanaka, Masaatsu (2017). "Urechidae Monro, 1927". WoRMS. World Register of Marine Species. Retrieved 12 March 2021.

Biology Encyclopedia

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