Definitions

A spine on a seta. [Wilson, 1989]
An extension of the shaft of a seta, usually of uniform width from base to tip, and forming an articulated or flexible junction with the shaft. [Watling, 1989]
(Taxon-specific: Class Cephalocarida) One of numerous minute projections of seta. May also refer to any small setae, e.g., those forming comb on 19th abdominal somite. [Stachowitsch, 1992]
(Taxon-specific: Subclass Copepoda) A solid extension of the epicuticle of a seta (see denticle and seta). [Ferrari and Dahms, in press]
(Taxon-specific: Subclass Copepoda) Setiform epicuticular ornamentation element, without tissue connection through integument. [Boxshall and Halsey, 2004]
(Taxon-specific: Class Ostracoda) One in a series of minute secondary projections on seta. (flexible, suctorial, tooth-like). [Stachowitsch, 1992]