Asymmetron

Asymmetron
	Asymmetron lucayanum
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Subphylum:	Cephalochordata
Class:	Leptocardii
Family:	Branchiostomatidae
Genus:	Asymmetron ; Andrews, 1893
Species
	Asymmetron inferum ; Asymmetron lucayanum ;

Last updated August 30, 2025

Asymmetron is one of the few living genera of lancelets (order Amphioxiformes).

Asymmetron can grow to 60 mm. The species of this genus are found in world oceans.^[1]

The genus Asymmetron currently contains only two species:^[2]

Asymmetron inferum Nishikawa, 2004
Asymmetron lucayanum Andrews, 1893

References

↑ "Asymmetron Andrews, 1893". www.gbif.org. Retrieved 10 June 2021.
↑ Igawa, T., M. Nozawa; M. Nozawa; D.G. Suzuki; J.D. Reimer; A.R. Morov; Y. Wang; Y. Henmi; K. Yasui (2017). "Evolutionary history of the extant amphioxus lineage with shallow-branching diversification". Scientific Reports. 7 (1): 1157. Bibcode:2017NatSR...7.1157I. doi:10.1038/s41598-017-00786-5. PMC 5430900 . PMID 28442709.

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[GBIF-1] "Asymmetron Andrews, 1893". www.gbif.org. Retrieved 10 June 2021.

[2] Igawa, T., M. Nozawa; M. Nozawa; D.G. Suzuki; J.D. Reimer; A.R. Morov; Y. Wang; Y. Henmi; K. Yasui (2017). "Evolutionary history of the extant amphioxus lineage with shallow-branching diversification". Scientific Reports. 7 (1): 1157. Bibcode:2017NatSR...7.1157I. doi:10.1038/s41598-017-00786-5. PMC 5430900 . PMID 28442709.

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