[Crustacea] Long structured, bristle- or hair-like excrescence of an appendage.
They are longer and thicker-walled than hairs, longer and more flexible than teeth or claws. Their structure, number and morphology are usually consistent within a species.
In Ostracoda, individual setae are often referred to by a consistent notation of letters (e.g., "a" or "e" seta).

Alternative form for seta : setae.