Dromiidae

Dromiidae is a family of crabs, often referred to as sponge crabs. They are small or medium-sized crabs which get their name from the ability to shape a living sponge into a portable shelter for themselves. A sponge crab cuts out a fragment from a sponge and trims it to its own shape using its claws. The last two pairs of legs are shorter than other legs and bend upward over the crab's carapace, to hold the sponge in place. The sponge grows along with the crab, providing a consistent shelter.

==Subfamilies and genera== The family Dromiidae contains the following subfamilies and genera: Dromiinae Alainodromia Ameridromia Ascidiophilus Austrodromidia Barnardomia Conchoecetes Costadromia Cryptodromia Cryptodromiopsis Desmodromia Dromia Dromidia Dromidiopsis Dromilites Epigodromia Epipedodromia Eudromidia Exodromidia Foredromia Fultodromia Haledromia Hemisphaerodromia Homalodromia Kerepesia Kromtitis Lamarckdromia Lauridromia Lewindromia Lucanthonisia Mclaydromia Metadromia Moreiradromia Noetlingia Paradromia Petalomera Platydromia Pseudodromia Speodromia Stebbingdromia Sternodromia Stimdromia Takedromia Tumidodromia Tunedromia Hypoconchinae Hypoconcha Sphaerodromiinae Eodromia Frodromia Sphaerodromia