Thoracotremata
Thoracotremata is a clade of crabs, comprising those crabs in which the genital openings in both sexes are on the sternum, rather than on the legs. It comprises 17 families in four superfamilies .- Ocypodoidea
- *Camptandriidae
- *Dotillidae
- *Heloeciidae
- *Macrophthalmidae
- *Mictyridae
- *Ocypodidae
- *Ucididae
- *Xenophthalmidae
- Pinnotheroidea
- *Pinnotheridae
- Cryptochiroidea
- *Cryptochiridae
- Grapsoidea
- *Gecarcinidae
- *Glyptograpsidae
- *Grapsidae
- *Plagusiidae
- *Sesarmidae
- *Varunidae
- *Xenograpsidae