''Stentor muelleri'', also called a trumpet ciliate, is a single-celled eukaryote which feeds on

algae Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular mic ...

. It has a horned-shaped body and is usually long (exceptionally up to ) and is found in freshwater bodies of water and sometimes estuaries. ''Stentor muelleri'' is a

heterotrich The heterotrichs are a class of ciliates. They typically have a prominent adoral zone of membranelles circling the mouth, used in locomotion and feeding, and shorter cilia on the rest of the body. Many species are highly contractile, and are ...

References

Heterotrichea {{ciliate-stub