Chirocephalus

…common species in Europe is Chirocephalus diaphanus; in North America the most common is Eubranchipus vernalis.

Some anostracans, such as Chirocephalus, have a complex system of flaps and muscles in the trunk limbs, and they modify the limb movement in order to hover in one position for long periods. The other six orders swim by means of their antennae, which have two branches bearing featherlike…