| Forelius sp. 1 is apparently an undescribed species, distinguishable from Forelius maccooki by the lack of erect setae on the antennal scapes. |
| Ice worms propel themselves using setae, extremely small bristles that protrude from the sides of their bodies. |
| Insect adhesive organs are either smooth and deformable cuticle pads or fields of adhesive setae. |
| All cells in the colony are heteropolar, and all setae are directed toward one end of the chain. |
| Branchiopod characters include endites with setae turned backwards, the elongation of the telson, and its fluke-shaped rami. |
| These are distinguished from nonreproductive adults by the presence of natatory setae and an enlarged medial region for gamete storage. |
