Setae of Earthworm

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An illustration of the various types of earthworm setae. Seta (plural: setae) is a biological term derived from the Latin word for “bristle". It refers to a number of different bristle- or hair-like structures on living organisms. “A, penial seta of Perichaeta ceylonica; b, extremity of penial seta of Acanthodrilus; c, Seta of Urochaeta; d, Seta of Lumbricus; e, Seta of Criodrilus; f, g, Setae of Bohemilla comata; h, i, j, Setae of Psammoryctes barbatus.” (Britannica, 1910)

Keywords

annelida, annelid, Oligochaeta, worm, earthworms

Galleries

Worms

Source

Encyclopaedia Britannica (11th ed., vol. 5) (New York, NY: The Encyclopaedia Britannica Company, 1910)

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