Definitions
Accessory flagellum
- (Taxon-specific: Order Amphipoda) Small inner flagellum of antennule (as opposed to larger primary flagellum). Number of articles is of taxonomic importance. [Stachowitsch, 1992]
- (Taxon-specific: Order Isopoda) In antenna of certain isopods, small, many-segmented flagellum projecting from fourth segment of peduncle. [Stachowitsch, 1992]