Stentor polymorphus

Phylum: Ciliophora

Class: Heterotrichea

Order: Heterotrichida

Family: Stentoridae

Genus: Stentor

Species: S. polymorphus

 

Stentor polymorphus is a large, trumpet-shaped ciliate that lives in freshwater. It's a single-celled organism with a complex biology that includes a symbiotic relationship with algae.

 

Appearance

 

Stentor polymorphus is colorless, but can appear green due to the algae it contains.

It can grow up to 2 mm long.

It has a trumpet shape when swimming or feeding, and a teardrop shape when contracted.

 

 

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