# Johann Marcusen

> German ichthyologist (1817-1894)

**Wikidata**: [Q20643810](https://www.wikidata.org/wiki/Q20643810)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Johann_Marcusen)  
**Source**: https://4ort.xyz/entity/johann-marcusen


## References

1. Integrated Authority File
2. Virtual International Authority File