The thoracic limbs are held wide open, ready to close on any prey which enters.

The thoracic limbs are jointed and used for swimming or walking.

A thoracic limb is a limb attached to the thorax.

This stage resembles the adult, but has a simple, unsegmented abdomen and only three pairs of thoracic limbs.

They have large chewing mandibles, three thoracic limbs, and, in most cases, a number of abdominal prolegs.

Both pelvic and thoracic limbs contain the same number of bones, 20 bones per limb.

The thoracic limbs wash water towards the mouth, filtering out small particles of food with the mouthparts or maxillipeds.

The Anomopoda typically have five pairs of thoracic limbs, but sometimes have six pairs.

Thoracic limb (disambiguation)

The pelvic limb typically contains 19 bones, while the thoracic limb contains 20 bones.

Leptostracans have gills on their thoracic limbs, but also breathe through a respiratory membrane on the inside of the carapace.

Mictaceans have a brood pouch (marsupium) and biramous thoracic limbs, but lack a carapace.

Most decapods carry the eggs attached to the pleopods, while peracarids, notostracans, anostracans, and many isopods form a brood pouch from the carapace and thoracic limbs.

There are six pairs of thoracic limbs, referred to as "cirri", which are feathery and very long, being used to filter food from the water and move it towards the mouth.

A bloody-red mysid feeds using its thoracic limbs, either by capturing prey with its endopods or by removing food particles from its body that are filtered from incoming currents by its exopods.

The morphological interpretation of these structures presents many problems, especially as there is a basic and long-standing controversy as to whether they are, at least in part, modified abdominal appendages serially homologous with the thoracic limbs, or whether they are simply secondary sternal processes.

Walcott himself had admitted that he couldn't find these supposed appendages on most specimens: "The maxillulae and maxillae were so slender that they are usually absent as the result of having been torn off or crushed between the strong mandibles [Whittington's second antennae] and the thoracic limbs" (Walcott, 1931, pp.