# Ptychatractus

> genus of molluscs

**Wikidata**: [Q3168645](https://www.wikidata.org/wiki/Q3168645)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ptychatractus)  
**Source**: https://4ort.xyz/entity/ptychatractus


## References

1. Integrated Taxonomic Information System. 1999
2. Global Biodiversity Information Facility
3. Encyclopedia of Life
4. Fossilworks
5. World Register of Marine Species
6. Barcode of Life Data Systems
7. Interim Register of Marine and Nonmarine Genera
8. Open Tree of Life reference taxonomy version 3.6