Bengtsoniella [Beng.tso.ni.el’la. N.L. fem. dim. n. Bengtsoniella, named for the American microbiologist Ida A. Bengtson, the first woman scientist employed by the National Institutes of Health (USA), for her pioneering work with anaerobic organisms and for paving the way for the hiring of many influential women scientists at the National Institutes of Health]. Cells of the only described species are Gram-negative. The cells are rods (3 µm long and 1 µm wide) sometimes with one or two pointed ends. Colonies on Medium 27 agar appear colourless and shiny with a diameter of about 1 mm after a week of growing anaerobically at 20 °C. No endospores or flagella were seen. The type species is Bengtsoniella intestinalis.