Lieutenant-Colonel Robert Beresford Seymour Sewell CIE FRS[1] FLS FZS (5 March 1880 – 11 February 1964) was a British military doctor who served with the Indian Medical Service and served as a Surgeon Naturalist in the marine surveys, specialising on the taxonomy of copepods, and acted as an editor of The Fauna of British India, Including Ceylon and Burma 1933–1963.
His father was the reverend Arthur Sewell, and his mother was Mary Lee (née Waring).
He served during the First World War in Mesopotamia and was Mentioned in Dispatches in the London Gazette 6 July 1917.
[8] He also served as a professor at the Calcutta medical college (1911–1913) and from 1910 to 1925 held the position of Surgeon Naturalist on the marine surveys aboard the RIMS Investigator.
From 1925 he served as Director of the Zoological Survey of India from 17 July 1925 to his retirement.