# Ophiura crassa

> species of echinoderm - formely a variety - raised at species rank by Fell (1961)

**Wikidata**: [Q2125449](https://www.wikidata.org/wiki/Q2125449)  
**Source**: https://4ort.xyz/entity/ophiura-crassa


## References

1. [The fauna of the Ross Sea. Part 1. Ophiuroidea](https://archive.org/details/nzoimemoir00181961/page/n48/mode/1up)
2. Taxonomy database of the U.S. National Center for Biotechnology Information
3. Encyclopedia of Life
4. Global Biodiversity Information Facility
5. World Register of Marine Species
6. The fauna of the Ross Sea. Part 1. Ophiuroidea
7. UMLS 2023
8. Barcode of Life Data Systems
9. Interim Register of Marine and Nonmarine Genera
10. Ocean Biodiversity Information System
11. Open Tree of Life reference taxonomy version 3.6