# Hydracarina2

- By: Janek Lass
- Date: 2023-05-26
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Hydracarina2.jpg)
- Rights: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0)
- Picture: https://invisiblenetwork.ai/thumbs/commons/thumb/f/f2/Hydracarina2.jpg/1920px-Hydracarina2.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Hydrachnidia, also known as "water mites", Hydrachnidiae, Hydracarina or Hydrachnellae, are among the most abundant and diverse groups of benthic arthropods, composed of 6,000 described species from 57 families. This specimen was found in a city pond in the city of Rakvere in Estonia