scraped from crustose lichen on Carya ovata bark
Dead rotifer likely Brachionus spp. being scavenged by smaller microorganisms.
Image also showing a heliozoan.
The organism is surrounded by a protective gelatinous case that it retracts into when a threat is perceived as demonstrated in the video.
I got 10min+ of footage of this rotifer inhabiting the leaf of a moss specimen
(Syntrichia princeps) I collected.
The moss was gathered from Bluffs Park October 23 though these images were captured today, December 11, 2016.
From a pond. Very small.
From a pond.
This is a Bdelloid rotifer (Rotifer-19984-5-LI in the foldscope classfication) that grew in a lichen suspended in water for 2 weeks. It might be from the lichen as I have seen this at least twice independently. For more details and videos see,
Rotifer searching for food. Found from moss in my backyard.
The rotifers (Rotifera, commonly called wheel animals) make up a phylum of microscopic and near-microscopic pseudocoelomate animals. They were first described by Rev. John Harris in 1696, and other forms were described by Anton van Leeuwenhoek in 1703. Most rotifers are around 0.1–0.5 mm long (although their size can range from 50 μm to over 2 millimeters), and are common in freshwater environments throughout the world with a few saltwater species; for example, those of genus Synchaeta. Some...