An oostegite is a large, flexible plate-like flap extending medially from the
coxae (first segments) of the
pereiopods (thoracic appendages) in some
female
Female (Venus symbol, symbol: ♀) is the sex of an organism that produces the large non-motile ovum, ova (egg cells), the type of gamete (sex cell) that fuses with the Sperm, male gamete during sexual reproduction.
A female has larger gamet ...
crustaceans. It forms part of the
marsupium or brood pouch of members of the superorder
Peracarida
The superorder Peracarida is a large group of malacostracan crustaceans, having members in marine, freshwater, and terrestrial habitats. They are chiefly defined by the presence of a brood pouch, or ''marsupium'', formed from thin flattened plat ...
, from the class Malacostraca (crabs, shrimps, woodlice and others).
References
{{Arthropod-anatomy-stub
Arthropod morphology