Dromiidae

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Superphylum: Ecdysozoa
Phylum: Arthropoda
Subphylum: Crustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Eucarida
Ordo: Decapoda
Subordo: Pleocyemata
Infraordo: Brachyura
Sectio: Dromiacea
Superfamilia: Dromioidea
Familia: Dromiidae
Subfamiliae: Dromiinae - Hypoconchinae - Sphaerodromiinae

Overview of genera: Ascidiophilus - Alainodromia - Austrodromidia - Barnardromia - Conchoecetes - Cryptodromia - Cryptodromiopsis - Desmodromia - Dromia - Dromidia - Dromidiopsis - Eodromia - Epigodromia - Epipedodromia - Eudromidia - Exodromidia - Fultodromia - Haledromia - Hemisphaerodromia - Homalodromia - Hypoconcha - Lamarckdromia - Lauridromia - Lewindromia - Mclaydromia - Metadromia - Moreiradromia - Paradromia - Petalomera - Platydromia - Pseudodromia - Speodromia - Sphaerodromia - Stebbingdromia - Sternodromia - Stimdromia - Takedromia - Tumidodromia - Tunedromia

References

* Guinot, D.; Tavares, M. 2003: A new subfamilial arrangement for the Dromiidae de Haan, 1833, with diagnoses and descriptions of new genera and species (Crustacea, Decapoda, Brachyura). Zoosystema, 25(1): 43–129. PDF
* McLay, C.L. 2009: New records of crabs (Decapoda: Brachyura) from the New Zealand region, including a new species of Rochinia A. Milne-Edwards, 1875 (Majidae), and a revision of the genus Dromia Weber, 1795 (Dromiidae). Zootaxa, 2111: 1-66. Abstract & excerpt

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.[2] 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.[2