Matutidae

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Cladus: Pancrustacea
Superclassis: Multicrustacea
Classis: Malacostraca
Subclassis: Eumalacostraca
Superordo: Eucarida
Ordo: Decapoda
Subordo: Pleocyemata
Infraordo: Brachyura
Sectio: Eubrachyura
Subsectio: Heterotremata
Superfamilia: Calappoidea
Familia: Matutidae
Genera: Ashtoret - Izanami - Matuta
Name

Matutidae De Haan, 1835
References

Haan, H. M. De, (1833–1849). Crustacea. In: P. F. von Siebold, Fauna Japonica, sive Descriptio animalium, quae in itinere per Japoniam, jussu et auspiciis superiorum, qui summum in India Batavia imperium tenent, suscepto, annis 1823–1830 collegit, notis, observationibus a adumbrationibus illustravit. Lugduni Batavorum, fasc. 1–8: I–xxi+vii–xvii+ix–xvi+1–243, pls. 1–55, A–Q, circ., pl. 2. (For publication dates see Sherborn & Jentink, 1895; Holthuis, 1953; Holthuis & Sakai, 1970).

Matutidae is a family of crabs, sometimes called moon crabs,[2] adapted for swimming or digging. They differ from the swimming crabs of the family Portunidae in that all five pairs of legs are flattened, rather than just the last pair, as in Portunidae. Crabs in the Matutidae are aggressive predators.[3]
Taxonomy

Traditionally, this taxon contained the single genus Matuta, and was considered a subfamily of the Calappidae.[3] Now, the group is ranked as a family and six genera (four extant and two fossil) are now recognised.[4] Although placed in the Calappoidea, it is not clear that Matutidae and Calappidae are closely related.[5]

Ashtoret Galil & P. F. Clark, 1994
† Eomatuta De Angeli & Marchiori, 2009
Izanami Galil & P. F. Clark, 1994
Matuta Weber, 1795
Mebeli Galil & P. F. Clark, 1994
† Szaboa Müller & Galil, 1998

A

Fossil record

Szaboa is known only from Hungarian fossil deposits of Middle Miocene age.[6] Eomatuta was described from the Middle Eocene of Italy in 2009.[7] Fossils of Ashtoret have also been found in Miocene deposits in Japan.[6]
References

Peter Davie & Michael Türkay (2009). "Matutidae". World Register of Marine Species. Retrieved January 17, 2010.
Ria Tan (October 2008). "Moon crabs, Family Matutidae". Wild Singapore.
"Family MATUTIDAE De Haan, 1835". Australian Faunal Directory. Department of the Environment, Water, Heritage and the Arts. October 9, 2009. Archived from the original on April 1, 2011. Retrieved January 17, 2010.
Sammy De Grave; N. Dean Pentcheff; Shane T. Ahyong; et al. (2009). "A classification of living and fossil genera of decapod crustaceans" (PDF). Raffles Bulletin of Zoology. Suppl. 21: 1–109. Archived from the original (PDF) on 2011-06-06.
Peter K. L. Ng; Danièle Guinot & Peter J. F. Davie (2008). "Systema Brachyurorum: Part I. An annotated checklist of extant Brachyuran crabs of the world" (PDF). Raffles Bulletin of Zoology. 17: 1–286. Archived from the original (PDF) on 2011-06-06.
Hiroaki Karasawa (2002). "First record of a Miocene matutid crab (Crustacea: Decapoda: Brachyura) from Japan" (PDF). Bulletin of the Mizunami Fossil Museum. 29: 93–94. Archived from the original (PDF) on 2005-12-20.
A. de Angeli & L. Marchiori (2009). "Eomatuta granosa n. gen., n. sp. (Decapoda, Brachyura, Matutidae), nuovo crostaceo dell'Eocene dei Monti Berici (Vicenza, Italia settentrionale)". Lavori Società Veneziana di Scienze Naturali. 34: 105–110. Archived from the original on 2011-07-22.