''Spirocodon'' is a monotypic

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...

of hydrozoans with ''Spirocodon saltatrix'' as the only

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

in the genus. It is found in the north-western Pacific Ocean, and was first described in 1818 by the German naturalist and explorer Wilhelm Gottlieb Tilesius von Tilenau.

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Further reading