- Orithyia sinica
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Orithyia sinica Scientific classification Kingdom: Animalia Phylum: Arthropoda Subphylum: Crustacea Class: Malacostraca Order: Decapoda Infraorder: Brachyura Section: Eubrachyura Subsection: Heterotremata Superfamily: Orithyioidea
Dana, 1852Family: Orithyiidae
Dana, 1852Genus: Orithyia
Fabricius, 1798Species: O. sinica Binomial name Orithyia sinica
(Linnaeus, 1771)Synonyms - Cancer sinicus Linnaeus, 1771
- Cancer bimaculatus Herbst, 1790
- Cancer mammillaris Fabricius, 1793
Orithyia sinica, sometimes called the tiger crab or tiger face crab, is a "singularly unusual" species of crab,[1] whose characteristics warrant its separation into a separate genus, family and even superfamily,[1] having previously been included in the Dorippoidea or Leucosioidea.[2] Its larvae, for instance, are unlike those of any other crab.[3]
Contents
Appearance
O. sinica is a distinctive species, with stripes on the legs, and prominent eyespots on the carapace; the females' abdomen is unusually narrow, leaving the vulvae exposed.[1] The legs are flattened at the end, and this is an adaptation to digging, not swimming.[1]
Distribution and fishery
O. sinica is found along the coast of mainland Asia from South Korea to Hong Kong, but is missing from the nearby islands, such as Taiwan, the Ryukyu Islands and Japan, even though the intervening waters are shallow and the crab's larvae are planktonic.[1] Throughout its range, O. sinica is fished on a small scale, and commands high prices.[1]
Etymology
The name Orithyia (also spelt Orithuja) commemorates Orithyia, daughter of Erechtheus, King of Athens.[1]
References
- ^ a b c d e f g 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. http://rmbr.nus.edu.sg/rbz/biblio/s17/s17rbz.pdf.
- ^ Joel W. Martin & George E. Davis (2001) (PDF). An Updated Classification of the Recent Crustacea. Natural History Museum of Los Angeles County. pp. 132. http://atiniui.nhm.org/pdfs/3839/3839.pdf.
- ^ A. L. Rice (1980). "The first zoeal stage of Ebalia nux A. Milne Edwards 1883, with a discussion of the zoeal characters of the Leucosiidae (Crustacea, Decapoda, Brachyura)". Journal of Natural History 14 (3): 331–337. doi:10.1080/00222938000770281.
Superfamilies of Infraclass Brachyura (true crabs) Dromiacea 
Raninoida RaninoideaCyclodorippoida Eubrachyura HeterotremataAethroidea · Bellioidea · Bythograeoidea · Calappoidea · Cancroidea · Carpilioidea · Cheiragonoidea · Componocancroidea† · Corystoidea · Dairoidea · Dorippoidea · Eriphioidea · Gecarcinucoidea · Goneplacoidea · Hexapodoidea · Leucosioidea · Majoidea · Orithyioidea · Palicoidea · Parthenopoidea · Pilumnoidea · Portunoidea · Potamoidea · Pseudothelphusoidea · Pseudozioidea · Retroplumoidea · Trapezioidea · Trichodactyloidea · XanthoideaCategories:- Crabs
- Indo-Pacific crustaceans
- Edible crustaceans
- Commercial crustaceans
- Animals described in 1771
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