(Order Decapoda):
Term referring either to pereopod modified (flattened) for swimming or to pleopods used in swimming [Stachowitsch, 1992].
(Subclass Copepoda):
A contralateral pair of thoracic limbs which are flattened anterioposteriorly and united by an interpodal bar; these attributes are shared only in the transformed limb and later steps of limb development (see also appendage and limb) [Ferrari and Dahms, in press].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.