# Ulnaria acus

> species of diatom

**Wikidata**: [Q67869253](https://www.wikidata.org/wiki/Q67869253)  
**Source**: https://4ort.xyz/entity/ulnaria-acus


## References

1. Taxonomy database of the U.S. National Center for Biotechnology Information
2. Global Biodiversity Information Facility
3. World Register of Marine Species
4. AlgaeBase
5. New Zealand Organisms Register
6. UMLS 2023
7. TAXREF v9.0
8. TAXREF v10.0
9. TAXREF v11.0
10. TAXREF v12.0
11. TAXREF v13.0
12. TAXREF v14.0
13. TAXREF v15.0
14. National Biodiversity Network
15. Interim Register of Marine and Nonmarine Genera
16. Brazilian Flora 2020 project - Projeto Flora do Brasil 2020