Thiomargarita magnifica

Thiomargarita magnifica is a species of sulfur-oxidizing gammaproteobacteria. It is found growing underwater on the leaves of red mangroves from Guadeloupe archipelago in Lesser Antilles. This bacterium is the largest known bacterium, with an average length of 10 mm and some reaching 20 mm. The bacterium was found in February 2022.