# Hydrachnidae und Halacaridae

> book (1901) by R. Piersig and H. Lohmann, vol. 13 of the series "Das Tierreich"

**Wikidata**: [Q51397362](https://www.wikidata.org/wiki/Q51397362)  
**Source**: https://4ort.xyz/entity/hydrachnidae-und-halacaridae


## References

1. Biodiversity Heritage Library
2. Internet Archive