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Scientific classification
Kingdom: Bacteria
Phylum: Proteobacteria
Class: Alpha Proteobacteria
Order: Parvularculales
Family: Parvularculaceae
Genus: Parvularcula
Species: P. bermudensis
Binomial name
Parvularcula bermudensis
Cho and Giovannoni, 2003

Parvularcula bermudensis is a marine bacterium which was identified in 2003 in the western Sargasso Sea in the Atlantic Ocean. It forms a deep branch in the Alpha Proteobacteria, distinct from the other orders.

Parvularcula isolates are Gram-negative, strictly aerobic, chemoheterotrophic, slightly motile short rods with a single flagellum. Colonies on marine agar are very small (0·3–0·8 mm in diameter), yellowish-brown and very hard. They are oxidase positive and catalase negative.