# Sammallooma ellujäämiskapsel (Cristatella mucedo)

- By: Janek Lass
- Date: 2024-11-24
- Classification: Photograph
- Museum: [Wikimedia Commons](https://commons.wikimedia.org/wiki/File:Sammallooma_elluj%C3%A4%C3%A4miskapsel_(Cristatella_mucedo).jpg)
- Rights: [CC BY 4.0](https://creativecommons.org/licenses/by/4.0)
- Picture: https://upload.wikimedia.org/wikipedia/commons/thumb/1/12/Sammallooma_elluj%C3%A4%C3%A4miskapsel_%28Cristatella_mucedo%29.jpg/1920px-Sammallooma_elluj%C3%A4%C3%A4miskapsel_%28Cristatella_mucedo%29.jpg
- Who can see it: Kids profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

A statoblast of the freshwater bryozoan (Cristatella mucedo) photographed under a microscope using a 4x objective. The specimen was collected from a pond in Rakvere, Estonia, in November 2024. Statoblasts are specialized survival structures that help bryozoans withstand adverse conditions such as freezing and desiccation.

The image clearly shows the statoblast's central part, a gas-filled flotation ring that allows it to float, and the outer ring with spiny structures that enable attachment to aquatic plants or bird feathers.

The image was captured using reflected light, highlighting details such as the spiny outer ring and the bright flotation ring. The photograph was taken on November 24, 2024.