# Ptilocaulis echidnaeus

> species of sponge

**Wikidata**: [Q2502465](https://www.wikidata.org/wiki/Q2502465)  
**Source**: https://4ort.xyz/entity/ptilocaulis-echidnaeus


## References

1. Global Biodiversity Information Facility
2. World Register of Marine Species
3. Interim Register of Marine and Nonmarine Genera
4. Open Tree of Life reference taxonomy version 3.6