Scylla

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: Portunoidea

Familia: Portunidae
Genus: Scylla
Species: S. serrata – S. tranquebarica – S. paramamosain – S. olivacea
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Vernacular names
English: Mud crab, Mangrove crab
日本語: ノコギリガザミ属
中文: 青蟹属, 靑蟳屬

Scylla is a genus of swimming crabs, comprising four species,[1] of which S. serrata is the most widespread. They are found across the Indo-West Pacific.[2] The four species are:[3][1]

Image	Scientific name	Common name	Distribution
	Scylla olivacea (Herbst, 1796)	orange mud crab	Southeast Asia to Pakistan, and from Japan to northern Australia
	Scylla paramamosain Estampador, 1949		South China Sea south to the Java Sea
	Scylla serrata (Forskål, 1775)	black crab	Southern Japan to south-eastern Australia, northern New Zealand
	Scylla tranquebarica (Fabricius, 1798)		Pakistan and Taiwan to the Malay Archipelago and other Indo-Pacific regions

References

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.
L. Le Vay (2001). "Ecology and management of mud crab Scylla spp". Asian Fisheries Science. 14: 101–111. Archived from the original on 2011-07-25.
Keenan, Clive P.; Davie, Peter J.F.; Mann, David L. (1998). "A revision of the genus Scylla de Haan, 1833 (Crustacea: Decapoda: Brachyura: Portunidae)". The Raffles Bulletin of Zoology. 46 (1): 217–245.