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CrabFrom Wikipedia, the free encyclopedia
For other uses, seeCrab (disambiguation).
Crabs
Temporal range: JurassicRecent
Pre
O
S
D
C
P
T
J
K
Pg
N
Liocarcinus vernalis
Scientific classification
http://en.wikipedia.org/wiki/Crab_(disambiguation)http://en.wikipedia.org/wiki/Crab_(disambiguation)http://en.wikipedia.org/wiki/Crab_(disambiguation)http://en.wikipedia.org/wiki/Precambrianhttp://en.wikipedia.org/wiki/Precambrianhttp://en.wikipedia.org/wiki/Cambrianhttp://en.wikipedia.org/wiki/Cambrianhttp://en.wikipedia.org/wiki/Ordovicianhttp://en.wikipedia.org/wiki/Ordovicianhttp://en.wikipedia.org/wiki/Silurianhttp://en.wikipedia.org/wiki/Silurianhttp://en.wikipedia.org/wiki/Devonianhttp://en.wikipedia.org/wiki/Devonianhttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Permianhttp://en.wikipedia.org/wiki/Permianhttp://en.wikipedia.org/wiki/Triassichttp://en.wikipedia.org/wiki/Triassichttp://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Paleogenehttp://en.wikipedia.org/wiki/Paleogenehttp://en.wikipedia.org/wiki/Neogenehttp://en.wikipedia.org/wiki/Neogenehttp://en.wikipedia.org/wiki/Liocarcinus_vernalishttp://en.wikipedia.org/wiki/Liocarcinus_vernalishttp://en.wikipedia.org/wiki/Biological_classificationhttp://en.wikipedia.org/wiki/Biological_classificationhttp://en.wikipedia.org/wiki/File:Liocarcinus_vernalis.jpghttp://en.wikipedia.org/wiki/Biological_classificationhttp://en.wikipedia.org/wiki/Liocarcinus_vernalishttp://en.wikipedia.org/wiki/Neogenehttp://en.wikipedia.org/wiki/Paleogenehttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Triassichttp://en.wikipedia.org/wiki/Permianhttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Devonianhttp://en.wikipedia.org/wiki/Silurianhttp://en.wikipedia.org/wiki/Ordovicianhttp://en.wikipedia.org/wiki/Cambrianhttp://en.wikipedia.org/wiki/Precambrianhttp://en.wikipedia.org/wiki/Crab_(disambiguation)
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Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Suborder: Pleocyemata
Infraorder: Brachyura
Linnaeus,1758
Sections & subsections[1]
Dromiacea
Raninoida
Cyclodorippoida
Eubrachyura Heterotremata
Thoracotremata
True crabs aredecapodcrustaceansof the infraorder Brachyura,
which typically have a
very short projecting "tail"(Greek:/brachys= short,[2]/ura =
tail
[3]), or where
the reducedabdomenis entirely hidden under thethorax. Many other
animals with similar
names such ashermit crabs,king crabs,porcelain crabs,horseshoe
crabsandcrab lice
are not true crabs.
Contents
[hide]
1 Evolution
2 Sexual dimorphism
3 Behaviour
http://en.wikipedia.org/wiki/Biological_classificationhttp://en.wikipedia.org/wiki/Animalhttp://en.wikipedia.org/wiki/Animalhttp://en.wikipedia.org/wiki/Arthropodhttp://en.wikipedia.org/wiki/Arthropodhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Malacostracahttp://en.wikipedia.org/wiki/Malacostracahttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Pleocyematahttp://en.wikipedia.org/wiki/Pleocyematahttp://en.wikipedia.org/wiki/Carl_Linnaeushttp://en.wikipedia.org/wiki/Carl_Linnaeushttp://en.wikipedia.org/wiki/Systema_Naturaehttp://en.wikipedia.org/wiki/Systema_Naturaehttp://en.wikipedia.org/wiki/Systema_Naturaehttp://en.wikipedia.org/wiki/Crab#cite_note-Grave-0http://en.wikipedia.org/wiki/Crab#cite_note-Grave-0http://en.wikipedia.org/wiki/Crab#cite_note-Grave-0http://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Tailhttp://en.wikipedia.org/wiki/Tailhttp://en.wikipedia.org/wiki/Tailhttp://en.wikipedia.org/wiki/Greek_languagehttp://en.wikipedia.org/wiki/Greek_languagehttp://en.wikipedia.org/wiki/Greek_languagehttp://en.wiktionary.org/wiki/%CE%B2%CF%81%CE%B1%CF%87%CF%8D%CF%82http://en.wiktionary.org/wiki/%CE%B2%CF%81%CE%B1%CF%87%CF%8D%CF%82http://en.wiktionary.org/wiki/%CE%B2%CF%81%CE%B1%CF%87%CF%8D%CF%82http://en.wikipedia.org/wiki/Crab#cite_note-1http://en.wikipedia.org/wiki/Crab#cite_note-1http://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wikipedia.org/wiki/Crab#cite_note-2http://en.wikipedia.org/wiki/Crab#cite_note-2http://en.wikipedia.org/wiki/Crab#cite_note-2http://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Thoraxhttp://en.wikipedia.org/wiki/Thoraxhttp://en.wikipedia.org/wiki/Thoraxhttp://en.wikipedia.org/wiki/Hermit_crabhttp://en.wikipedia.org/wiki/Hermit_crabhttp://en.wikipedia.org/wiki/Hermit_crabhttp://en.wikipedia.org/wiki/King_crabhttp://en.wikipedia.org/wiki/King_crabhttp://en.wikipedia.org/wiki/King_crabhttp://en.wikipedia.org/wiki/Porcelain_crabhttp://en.wikipedia.org/wiki/Porcelain_crabhttp://en.wikipedia.org/wiki/Porcelain_crabhttp://en.wikipedia.org/wiki/Horseshoe_crabhttp://en.wikipedia.org/wiki/Horseshoe_crabhttp://en.wikipedia.org/wiki/Horseshoe_crabhttp://en.wikipedia.org/wiki/Crab_lousehttp://en.wikipedia.org/wiki/Crab_lousehttp://en.wikipedia.org/wiki/Crab_lousehttp://en.wikipedia.org/wiki/Crabhttp://en.wikipedia.org/wiki/Crabhttp://en.wikipedia.org/wiki/Crabhttp://en.wikipedia.org/wiki/Crab#Evolutionhttp://en.wikipedia.org/wiki/Crab#Evolutionhttp://en.wikipedia.org/wiki/Crab#Sexual_dimorphismhttp://en.wikipedia.org/wiki/Crab#Sexual_dimorphismhttp://en.wikipedia.org/wiki/Crab#Behaviourhttp://en.wikipedia.org/wiki/Crab#Behaviourhttp://en.wikipedia.org/wiki/Crab#Behaviourhttp://en.wikipedia.org/wiki/Crab#Sexual_dimorphismhttp://en.wikipedia.org/wiki/Crab#Evolutionhttp://en.wikipedia.org/wiki/Crabhttp://en.wikipedia.org/wiki/Crab_lousehttp://en.wikipedia.org/wiki/Horseshoe_crabhttp://en.wikipedia.org/wiki/Porcelain_crabhttp://en.wikipedia.org/wiki/King_crabhttp://en.wikipedia.org/wiki/Hermit_crabhttp://en.wikipedia.org/wiki/Thoraxhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Crab#cite_note-2http://en.wiktionary.org/wiki/%CE%BF%E1%BD%90%CF%81%CE%AChttp://en.wikipedia.org/wiki/Crab#cite_note-1http://en.wiktionary.org/wiki/%CE%B2%CF%81%CE%B1%CF%87%CF%8D%CF%82http://en.wikipedia.org/wiki/Greek_languagehttp://en.wikipedia.org/wiki/Tailhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Crab#cite_note-Grave-0http://en.wikipedia.org/wiki/Systema_Naturaehttp://en.wikipedia.org/wiki/Carl_Linnaeushttp://en.wikipedia.org/wiki/Pleocyematahttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Malacostracahttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Arthropodhttp://en.wikipedia.org/wiki/Animal
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4 Human consumption
o 4.1 Fisheries
o 4.2 Cookery
o
4.3 Pain
5 Classification
o 5.1 Superfamilies
6 Cultural influences
7 References
8 External links
[edit]Evolution
Gecarcinus quadratus, aland crabfromCentralandSouth America
Crabs are generally covered with a thickexoskeleton, and armed
with a single pair
ofchelae(claws). Crabs are found in all of the world's oceans,
while many crabs live
infresh waterand onland, particularly intropicalregions. Crabs
vary in size from thepea
crab, a few millimetres wide, to theJapanese spider crab, with a
leg span of up to 4 metres
(13 ft).[4]
About 850speciesof crab are freshwater, terrestrial or
semi-terrestrial species;[5]they are
found throughout the world's tropical andsemi-tropicalregions.
They were previously
thought to be amonophyletic group, but are now believed to
represent at least two
distinctlineages, one in theOld Worldand one in theNew
World.[6]
The earliest unambiguous crabfossilsdate from
theJurassic,[7]althoughCarboniferousImocaris, known only from
itscarapace, may be a
primitive crab.[8]Theradiationof crabs in theCretaceousand
afterward may be linked either
to the break-up ofGondwanaor to the concurrent radiation ofbony
fish, crabs'
mainpredators.[9]
http://en.wikipedia.org/wiki/Crab#Behaviourhttp://en.wikipedia.org/wiki/Crab#Human_consumptionhttp://en.wikipedia.org/wiki/Crab#Human_consumptionhttp://en.wikipedia.org/wiki/Crab#Fisherieshttp://en.wikipedia.org/wiki/Crab#Fisherieshttp://en.wikipedia.org/wiki/Crab#Cookeryhttp://en.wikipedia.org/wiki/Crab#Cookeryhttp://en.wikipedia.org/wiki/Crab#Painhttp://en.wikipedia.org/wiki/Crab#Painhttp://en.wikipedia.org/wiki/Crab#Classificationhttp://en.wikipedia.org/wiki/Crab#Classificationhttp://en.wikipedia.org/wiki/Crab#Superfamilieshttp://en.wikipedia.org/wiki/Crab#Superfamilieshttp://en.wikipedia.org/wiki/Crab#Cultural_influenceshttp://en.wikipedia.org/wiki/Crab#Cultural_influenceshttp://en.wikipedia.org/wiki/Crab#Referenceshttp://en.wikipedia.org/wiki/Crab#Referenceshttp://en.wikipedia.org/wiki/Crab#External_linkshttp://en.wikipedia.org/wiki/Crab#External_linkshttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=1http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=1http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=1http://en.wikipedia.org/wiki/Halloween_crabhttp://en.wikipedia.org/wiki/Halloween_crabhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Central_Americahttp://en.wikipedia.org/wiki/Central_Americahttp://en.wikipedia.org/wiki/South_Americahttp://en.wikipedia.org/wiki/South_Americahttp://en.wikipedia.org/wiki/South_Americahttp://en.wikipedia.org/wiki/Exoskeletonhttp://en.wikipedia.org/wiki/Exoskeletonhttp://en.wikipedia.org/wiki/Exoskeletonhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Freshwaterhttp://en.wikipedia.org/wiki/Freshwaterhttp://en.wikipedia.org/wiki/Freshwaterhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Tropicalhttp://en.wikipedia.org/wiki/Tropicalhttp://en.wikipedia.org/wiki/Tropicalhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Japanese_spider_crabhttp://en.wikipedia.org/wiki/Japanese_spider_crabhttp://en.wikipedia.org/wiki/Japanese_spider_crabhttp://en.wikipedia.org/wiki/Crab#cite_note-3http://en.wikipedia.org/wiki/Crab#cite_note-3http://en.wikipedia.org/wiki/Crab#cite_note-3http://en.wikipedia.org/wiki/Specieshttp://en.wikipedia.org/wiki/Specieshttp://en.wikipedia.org/wiki/Specieshttp://en.wikipedia.org/wiki/Crab#cite_note-4http://en.wikipedia.org/wiki/Crab#cite_note-4http://en.wikipedia.org/wiki/Crab#cite_note-4http://en.wikipedia.org/wiki/Subtropicshttp://en.wikipedia.org/wiki/Subtropicshttp://en.wikipedia.org/wiki/Subtropicshttp://en.wikipedia.org/wiki/Monophyletic_grouphttp://en.wikipedia.org/wiki/Monophyletic_grouphttp://en.wikipedia.org/wiki/Monophyletic_grouphttp://en.wikipedia.org/wiki/Lineage_(evolution)http://en.wikipedia.org/wiki/Lineage_(evolution)http://en.wikipedia.org/wiki/Lineage_(evolution)http://en.wikipedia.org/wiki/Old_Worldhttp://en.wikipedia.org/wiki/Old_Worldhttp://en.wikipedia.org/wiki/Old_Worldhttp://en.wikipedia.org/wiki/New_Worldhttp://en.wikipedia.org/wiki/New_Worldhttp://en.wikipedia.org/wiki/Crab#cite_note-5http://en.wikipedia.org/wiki/Crab#cite_note-5http://en.wikipedia.org/wiki/Crab#cite_note-5http://en.wikipedia.org/wiki/Fossilhttp://en.wikipedia.org/wiki/Fossilhttp://en.wikipedia.org/wiki/Fossilhttp://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Crab#cite_note-6http://en.wikipedia.org/wiki/Crab#cite_note-6http://en.wikipedia.org/wiki/Crab#cite_note-6http://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Carapacehttp://en.wikipedia.org/wiki/Carapacehttp://en.wikipedia.org/wiki/Carapacehttp://en.wikipedia.org/wiki/Crab#cite_note-7http://en.wikipedia.org/wiki/Crab#cite_note-7http://en.wikipedia.org/wiki/Crab#cite_note-7http://en.wikipedia.org/wiki/Adaptive_radiationhttp://en.wikipedia.org/wiki/Adaptive_radiationhttp://en.wikipedia.org/wiki/Adaptive_radiationhttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Gondwanahttp://en.wikipedia.org/wiki/Gondwanahttp://en.wikipedia.org/wiki/Gondwanahttp://en.wikipedia.org/wiki/Osteichthyeshttp://en.wikipedia.org/wiki/Osteichthyeshttp://en.wikipedia.org/wiki/Osteichthyeshttp://en.wikipedia.org/wiki/Predatorhttp://en.wikipedia.org/wiki/Predatorhttp://en.wikipedia.org/wiki/Crab#cite_note-8http://en.wikipedia.org/wiki/Crab#cite_note-8http://en.wikipedia.org/wiki/Crab#cite_note-8http://en.wikipedia.org/wiki/File:Gecarcinus_quadratus_(Nosara).jpghttp://en.wikipedia.org/wiki/File:Gecarcinus_quadratus_(Nosara).jpghttp://en.wikipedia.org/wiki/File:Gecarcinus_quadratus_(Nosara).jpghttp://en.wikipedia.org/wiki/File:Gecarcinus_quadratus_(Nosara).jpghttp://en.wikipedia.org/wiki/Crab#cite_note-8http://en.wikipedia.org/wiki/Predatorhttp://en.wikipedia.org/wiki/Osteichthyeshttp://en.wikipedia.org/wiki/Gondwanahttp://en.wikipedia.org/wiki/Cretaceoushttp://en.wikipedia.org/wiki/Adaptive_radiationhttp://en.wikipedia.org/wiki/Crab#cite_note-7http://en.wikipedia.org/wiki/Carapacehttp://en.wikipedia.org/wiki/Carboniferoushttp://en.wikipedia.org/wiki/Crab#cite_note-6http://en.wikipedia.org/wiki/Jurassichttp://en.wikipedia.org/wiki/Fossilhttp://en.wikipedia.org/wiki/Crab#cite_note-5http://en.wikipedia.org/wiki/New_Worldhttp://en.wikipedia.org/wiki/Old_Worldhttp://en.wikipedia.org/wiki/Lineage_(evolution)http://en.wikipedia.org/wiki/Monophyletic_grouphttp://en.wikipedia.org/wiki/Subtropicshttp://en.wikipedia.org/wiki/Crab#cite_note-4http://en.wikipedia.org/wiki/Specieshttp://en.wikipedia.org/wiki/Crab#cite_note-3http://en.wikipedia.org/wiki/Japanese_spider_crabhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Pea_crabhttp://en.wikipedia.org/wiki/Tropicalhttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Freshwaterhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Exoskeletonhttp://en.wikipedia.org/wiki/South_Americahttp://en.wikipedia.org/wiki/Central_Americahttp://en.wikipedia.org/wiki/Land_crabhttp://en.wikipedia.org/wiki/Halloween_crabhttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=1http://en.wikipedia.org/wiki/Crab#External_linkshttp://en.wikipedia.org/wiki/Crab#Referenceshttp://en.wikipedia.org/wiki/Crab#Cultural_influenceshttp://en.wikipedia.org/wiki/Crab#Superfamilieshttp://en.wikipedia.org/wiki/Crab#Classificationhttp://en.wikipedia.org/wiki/Crab#Painhttp://en.wikipedia.org/wiki/Crab#Cookeryhttp://en.wikipedia.org/wiki/Crab#Fisherieshttp://en.wikipedia.org/wiki/Crab#Human_consumption
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[edit]Sexual dimorphism
The underside of a male (top) and a female (bottom) individual
of Pachygrapsus marmoratus, showing the difference in
shape of the abdomen
Crabs often show markedsexual dimorphism. Males often have
largerclaws,[10]a tendency
which is particularly pronounced in thefiddler crabsof the genus
Uca(Ocypodidae). In
fiddler crabs, males have one claw which is greatly enlarged and
which is used for
communication, particularly for attracting a mate.[11]Another
conspicuous difference is the
form of the pleon (abdomen); in most male crabs, this is narrow
and triangular in form, while
females have a broader, rounded abdomen.[12]This is due to the
fact that female crabs
brood fertilised eggs on theirpleopods.
[edit]Behaviour
Carpilius convexusconsumingHeterocentrotus trigonariusin
Hawaii
http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=2http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=2http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=2http://en.wikipedia.org/wiki/Pachygrapsus_marmoratushttp://en.wikipedia.org/wiki/Pachygrapsus_marmoratushttp://en.wikipedia.org/wiki/Pachygrapsus_marmoratushttp://en.wikipedia.org/wiki/Sexual_dimorphismhttp://en.wikipedia.org/wiki/Sexual_dimorphismhttp://en.wikipedia.org/wiki/Sexual_dimorphismhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Crab#cite_note-9http://en.wikipedia.org/wiki/Crab#cite_note-9http://en.wikipedia.org/wiki/Crab#cite_note-9http://en.wikipedia.org/wiki/Fiddler_crabhttp://en.wikipedia.org/wiki/Fiddler_crabhttp://en.wikipedia.org/wiki/Fiddler_crabhttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Crab#cite_note-10http://en.wikipedia.org/wiki/Crab#cite_note-10http://en.wikipedia.org/wiki/Crab#cite_note-10http://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Crab#cite_note-11http://en.wikipedia.org/wiki/Crab#cite_note-11http://en.wikipedia.org/wiki/Crab#cite_note-11http://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=3http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=3http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=3http://en.wikipedia.org/wiki/Carpilius_convexushttp://en.wikipedia.org/wiki/Carpilius_convexushttp://en.wikipedia.org/wiki/Heterocentrotus_trigonariushttp://en.wikipedia.org/wiki/Heterocentrotus_trigonariushttp://en.wikipedia.org/wiki/Heterocentrotus_trigonariushttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Carpilius_convexus_is_consuming_Heterocentrotus_trigonarius_in_Hawaii.jpghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/File:Pachygrapsus_marmoratus_male_female.pnghttp://en.wikipedia.org/wiki/Heterocentrotus_trigonariushttp://en.wikipedia.org/wiki/Carpilius_convexushttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=3http://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Crab#cite_note-11http://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Crab#cite_note-10http://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Fiddler_crabhttp://en.wikipedia.org/wiki/Crab#cite_note-9http://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Sexual_dimorphismhttp://en.wikipedia.org/wiki/Pachygrapsus_marmoratushttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=2
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Crabs typically walk sideways[13](a behaviour which gives us the
wordcrabwise). This is
because of the articulation of the legs which makes a sidelong
gait more
efficient.[14]However, some crabs walk forwards or backwards,
includingraninids,[15]Libinia
emarginata[16]andMictyris platycheles.[13]Some crabs,
notably
thePortunidaeandMatutidae, are also capable of swimming.[17]
Crabs are mostly active animals with complex behaviour patterns.
They can communicate
by drumming or waving theirpincers. Crabs tend to be aggressive
towards one another and
males often fight to gain access to females.[18]On
rockyseashores, where nearly all caves
and crevices are occupied, crabs may also fight over hiding
holes.[19]
Crabs areomnivores, feeding primarily onalgae,[20]and taking any
other food,
includingmolluscs,worms,
othercrustaceans,fungi,bacteriaanddetritus, depending on
their availability and the crab species. For many crabs, a mixed
diet of plant and animal
matter results in the fastest growth and
greatestfitness.[21][22]
Crabs are known to work together to provide food and protection
for their family, and during
mating season to find a comfortable spot for the female to
release her eggs.[23]
[edit]Human consumption
[edit]Fisheries
Fishermen sortingedible crabsatFionnphort,Scotland
Main article:Crab fisheries
Crabs make up 20% of all marinecrustaceanscaught, farmed, and
consumed worldwide,
amounting to 1 milliontonnesannually. One species accounts for
one fifth of that
total:Portunus trituberculatus. Other commercially
importanttaxaincludePortunus
pelagicus, several species in the genusChionoecetes, theblue
crab(Callinectes
sapidus),Charybdis spp.,Cancer pagurus, theDungeness
crab(Metacarcinus magister)
andScylla serrata, each of which yields more than 20,000 tonnes
annually.[24]
http://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wiktionary.org/wiki/crabwisehttp://en.wiktionary.org/wiki/crabwisehttp://en.wiktionary.org/wiki/crabwisehttp://en.wikipedia.org/wiki/Crab#cite_note-13http://en.wikipedia.org/wiki/Crab#cite_note-13http://en.wikipedia.org/wiki/Crab#cite_note-13http://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Crab#cite_note-14http://en.wikipedia.org/wiki/Crab#cite_note-14http://en.wikipedia.org/wiki/Portly_spider_crabhttp://en.wikipedia.org/wiki/Portly_spider_crabhttp://en.wikipedia.org/wiki/Portly_spider_crabhttp://en.wikipedia.org/wiki/Crab#cite_note-15http://en.wikipedia.org/wiki/Crab#cite_note-15http://en.wikipedia.org/wiki/Mictyris_platycheleshttp://en.wikipedia.org/wiki/Mictyris_platycheleshttp://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wikipedia.org/wiki/Portunidaehttp://en.wikipedia.org/wiki/Portunidaehttp://en.wikipedia.org/wiki/Portunidaehttp://en.wikipedia.org/wiki/Matutidaehttp://en.wikipedia.org/wiki/Matutidaehttp://en.wikipedia.org/wiki/Matutidaehttp://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Crab#cite_note-17http://en.wikipedia.org/wiki/Crab#cite_note-17http://en.wikipedia.org/wiki/Crab#cite_note-17http://en.wikipedia.org/wiki/Shorehttp://en.wikipedia.org/wiki/Shorehttp://en.wikipedia.org/wiki/Shorehttp://en.wikipedia.org/wiki/Crab#cite_note-18http://en.wikipedia.org/wiki/Crab#cite_note-18http://en.wikipedia.org/wiki/Crab#cite_note-18http://en.wikipedia.org/wiki/Omnivorehttp://en.wikipedia.org/wiki/Omnivorehttp://en.wikipedia.org/wiki/Omnivorehttp://en.wikipedia.org/wiki/Algahttp://en.wikipedia.org/wiki/Algahttp://en.wikipedia.org/wiki/Crab#cite_note-19http://en.wikipedia.org/wiki/Crab#cite_note-19http://en.wikipedia.org/wiki/Crab#cite_note-19http://en.wikipedia.org/wiki/Molluschttp://en.wikipedia.org/wiki/Molluschttp://en.wikipedia.org/wiki/Molluschttp://en.wikipedia.org/wiki/Wormhttp://en.wikipedia.org/wiki/Wormhttp://en.wikipedia.org/wiki/Wormhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Fungihttp://en.wikipedia.org/wiki/Fungihttp://en.wikipedia.org/wiki/Fungihttp://en.wikipedia.org/wiki/Bacteriahttp://en.wikipedia.org/wiki/Bacteriahttp://en.wikipedia.org/wiki/Detritushttp://en.wikipedia.org/wiki/Detritushttp://en.wikipedia.org/wiki/Detritushttp://en.wikipedia.org/wiki/Fitness_(biology)http://en.wikipedia.org/wiki/Fitness_(biology)http://en.wikipedia.org/wiki/Crab#cite_note-20http://en.wikipedia.org/wiki/Crab#cite_note-20http://en.wikipedia.org/wiki/Crab#cite_note-20http://en.wikipedia.org/wiki/Crab#cite_note-22http://en.wikipedia.org/wiki/Crab#cite_note-22http://en.wikipedia.org/wiki/Crab#cite_note-22http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=4http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=4http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=4http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=5http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=5http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=5http://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Fionnphorthttp://en.wikipedia.org/wiki/Fionnphorthttp://en.wikipedia.org/wiki/Fionnphorthttp://en.wikipedia.org/wiki/Scotlandhttp://en.wikipedia.org/wiki/Scotlandhttp://en.wikipedia.org/wiki/Scotlandhttp://en.wikipedia.org/wiki/Crab_fisherieshttp://en.wikipedia.org/wiki/Crab_fisherieshttp://en.wikipedia.org/wiki/Crab_fisherieshttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Tonnehttp://en.wikipedia.org/wiki/Tonnehttp://en.wikipedia.org/wiki/Tonnehttp://en.wikipedia.org/wiki/Portunus_trituberculatushttp://en.wikipedia.org/wiki/Portunus_trituberculatushttp://en.wikipedia.org/wiki/Portunus_trituberculatushttp://en.wikipedia.org/wiki/Taxonhttp://en.wikipedia.org/wiki/Taxonhttp://en.wikipedia.org/wiki/Taxonhttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Chionoeceteshttp://en.wikipedia.org/wiki/Chionoeceteshttp://en.wikipedia.org/wiki/Chionoeceteshttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Charybdis_(genus)http://en.wikipedia.org/wiki/Charybdis_(genus)http://en.wikipedia.org/wiki/Charybdis_(genus)http://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Dungeness_crabhttp://en.wikipedia.org/wiki/Dungeness_crabhttp://en.wikipedia.org/wiki/Scylla_serratahttp://en.wikipedia.org/wiki/Scylla_serratahttp://en.wikipedia.org/wiki/Scylla_serratahttp://en.wikipedia.org/wiki/Crab#cite_note-23http://en.wikipedia.org/wiki/Crab#cite_note-23http://en.wikipedia.org/wiki/Crab#cite_note-23http://en.wikipedia.org/wiki/File:Sorting_Crabs_Ffionphort.jpghttp://en.wikipedia.org/wiki/File:Sorting_Crabs_Ffionphort.jpghttp://en.wikipedia.org/wiki/File:Sorting_Crabs_Ffionphort.jpghttp://en.wikipedia.org/wiki/File:Sorting_Crabs_Ffionphort.jpghttp://en.wikipedia.org/wiki/Crab#cite_note-23http://en.wikipedia.org/wiki/Scylla_serratahttp://en.wikipedia.org/wiki/Dungeness_crabhttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/wiki/Charybdis_(genus)http://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Chionoeceteshttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Portunus_pelagicushttp://en.wikipedia.org/wiki/Taxonhttp://en.wikipedia.org/wiki/Portunus_trituberculatushttp://en.wikipedia.org/wiki/Tonnehttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Crab_fisherieshttp://en.wikipedia.org/wiki/Scotlandhttp://en.wikipedia.org/wiki/Fionnphorthttp://en.wikipedia.org/wiki/Edible_crabhttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=5http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=4http://en.wikipedia.org/wiki/Crab#cite_note-22http://en.wikipedia.org/wiki/Crab#cite_note-20http://en.wikipedia.org/wiki/Crab#cite_note-20http://en.wikipedia.org/wiki/Fitness_(biology)http://en.wikipedia.org/wiki/Detritushttp://en.wikipedia.org/wiki/Bacteriahttp://en.wikipedia.org/wiki/Fungihttp://en.wikipedia.org/wiki/Crustaceanhttp://en.wikipedia.org/wiki/Wormhttp://en.wikipedia.org/wiki/Molluschttp://en.wikipedia.org/wiki/Crab#cite_note-19http://en.wikipedia.org/wiki/Algahttp://en.wikipedia.org/wiki/Omnivorehttp://en.wikipedia.org/wiki/Crab#cite_note-18http://en.wikipedia.org/wiki/Shorehttp://en.wikipedia.org/wiki/Crab#cite_note-17http://en.wikipedia.org/wiki/Clawhttp://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Matutidaehttp://en.wikipedia.org/wiki/Portunidaehttp://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12http://en.wikipedia.org/wiki/Mictyris_platycheleshttp://en.wikipedia.org/wiki/Crab#cite_note-15http://en.wikipedia.org/wiki/Portly_spider_crabhttp://en.wikipedia.org/wiki/Portly_spider_crabhttp://en.wikipedia.org/wiki/Crab#cite_note-14http://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Crab#cite_note-13http://en.wiktionary.org/wiki/crabwisehttp://en.wikipedia.org/wiki/Crab#cite_note-Sleinis-12
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[edit]Cookery
CrabmasalafromKarnataka, India
Further information:Category:Crab dishes
Crabs are prepared and eaten as a dish in several different ways
all over the world. Some
species are eaten whole, including the shell, such assoft-shell
crab; with other species just
the claws and/or legs are eaten. The latter is particularly
common for larger crabs, such as
thesnow crab. Mostly inEast Asiancultures, theroeof the female
crab is also eaten, which
usually appears orange or yellow in color in fertile crabs.
In some regions spices improve the culinary experience. In
Asia,masalacrab andchilli
crabare examples of heavily spiced dishes. In theChesapeake
Bayregion,blue crabis
often eaten withOld Bay Seasoning.
For the British dishCromer crab, thecrab meatis extracted and
placed inside the hardshell. One American way to prepare crab meat
is by extracting it and adding a flour mix,
creating acrab cake.
Crabs are also used inbisque, a global dish of French
origin.
[edit]Pain
Main article:Pain in crustaceans
Live crabs are often boiled. In 2005, Norwegian scientists
concluded thatlobsterscannot
feel pain.[25]However, later research suggests that crustaceans
are indeed able to feel and
remember pain.[26][27]
[edit]Classification
TheinfraorderBrachyura contains 6,793 species in
93families,[17]as many as the
remainder of theDecapoda.[28]The evolution of crabs is
characterised by an increasingly
robust body, and a reduction in theabdomen. Although many other
groups have undergone
http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=6http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=6http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=6http://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Karnatakahttp://en.wikipedia.org/wiki/Karnatakahttp://en.wikipedia.org/wiki/Karnatakahttp://en.wikipedia.org/wiki/Category:Crab_disheshttp://en.wikipedia.org/wiki/Category:Crab_disheshttp://en.wikipedia.org/wiki/Category:Crab_disheshttp://en.wikipedia.org/wiki/Soft-shell_crabhttp://en.wikipedia.org/wiki/Soft-shell_crabhttp://en.wikipedia.org/wiki/Soft-shell_crabhttp://en.wikipedia.org/wiki/Snow_crabhttp://en.wikipedia.org/wiki/Snow_crabhttp://en.wikipedia.org/wiki/Snow_crabhttp://en.wikipedia.org/wiki/East_Asiahttp://en.wikipedia.org/wiki/East_Asiahttp://en.wikipedia.org/wiki/East_Asiahttp://en.wikipedia.org/wiki/Roehttp://en.wikipedia.org/wiki/Roehttp://en.wikipedia.org/wiki/Roehttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Chesapeake_Bayhttp://en.wikipedia.org/wiki/Chesapeake_Bayhttp://en.wikipedia.org/wiki/Chesapeake_Bayhttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Old_Bay_Seasoninghttp://en.wikipedia.org/wiki/Old_Bay_Seasoninghttp://en.wikipedia.org/wiki/Cromer_crabhttp://en.wikipedia.org/wiki/Cromer_crabhttp://en.wikipedia.org/wiki/Cromer_crabhttp://en.wikipedia.org/wiki/Crab_meathttp://en.wikipedia.org/wiki/Crab_meathttp://en.wikipedia.org/wiki/Crab_meathttp://en.wikipedia.org/wiki/Crab_cakehttp://en.wikipedia.org/wiki/Crab_cakehttp://en.wikipedia.org/wiki/Crab_cakehttp://en.wikipedia.org/wiki/Bisque_(food)http://en.wikipedia.org/wiki/Bisque_(food)http://en.wikipedia.org/wiki/Bisque_(food)http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=7http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=7http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=7http://en.wikipedia.org/wiki/Pain_in_crustaceanshttp://en.wikipedia.org/wiki/Pain_in_crustaceanshttp://en.wikipedia.org/wiki/Pain_in_crustaceanshttp://en.wikipedia.org/wiki/Lobsterhttp://en.wikipedia.org/wiki/Lobsterhttp://en.wikipedia.org/wiki/Lobsterhttp://en.wikipedia.org/wiki/Crab#cite_note-24http://en.wikipedia.org/wiki/Crab#cite_note-24http://en.wikipedia.org/wiki/Crab#cite_note-24http://en.wikipedia.org/wiki/Crab#cite_note-25http://en.wikipedia.org/wiki/Crab#cite_note-25http://en.wikipedia.org/wiki/Crab#cite_note-25http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=8http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=8http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=8http://en.wikipedia.org/wiki/Infraorderhttp://en.wikipedia.org/wiki/Infraorderhttp://en.wikipedia.org/wiki/Infraorderhttp://en.wikipedia.org/wiki/Family_(biology)http://en.wikipedia.org/wiki/Family_(biology)http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/File:Crabmasala.jpghttp://en.wikipedia.org/wiki/File:Crabmasala.jpghttp://en.wikipedia.org/wiki/File:Crabmasala.jpghttp://en.wikipedia.org/wiki/File:Crabmasala.jpghttp://en.wikipedia.org/wiki/Abdomenhttp://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Decapodahttp://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Family_(biology)http://en.wikipedia.org/wiki/Infraorderhttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=8http://en.wikipedia.org/wiki/Crab#cite_note-25http://en.wikipedia.org/wiki/Crab#cite_note-25http://en.wikipedia.org/wiki/Crab#cite_note-24http://en.wikipedia.org/wiki/Lobsterhttp://en.wikipedia.org/wiki/Pain_in_crustaceanshttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=7http://en.wikipedia.org/wiki/Bisque_(food)http://en.wikipedia.org/wiki/Crab_cakehttp://en.wikipedia.org/wiki/Crab_meathttp://en.wikipedia.org/wiki/Cromer_crabhttp://en.wikipedia.org/wiki/Old_Bay_Seasoninghttp://en.wikipedia.org/wiki/Callinectes_sapidushttp://en.wikipedia.org/wiki/Chesapeake_Bayhttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Chilli_crabhttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/wiki/Roehttp://en.wikipedia.org/wiki/East_Asiahttp://en.wikipedia.org/wiki/Snow_crabhttp://en.wikipedia.org/wiki/Soft-shell_crabhttp://en.wikipedia.org/wiki/Category:Crab_disheshttp://en.wikipedia.org/wiki/Karnatakahttp://en.wikipedia.org/wiki/Masalahttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=6
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similar processes,carcinisationis most advanced in crabs.
Thetelsonis no longer
functional in crabs, and theuropodsare absent, having probably
evolved into small devices
for holding the reduced abdomen tight against thesternum.
In most decapods, thegonopores(sexual openings) are found on the
legs. However, since
crabs use the first two pairs ofpleopods(abdominal appendages)
for sperm transfer, this
arrangement has changed. As the male abdomen evolved into a
narrower shape, the
gonopores have moved towards the midline, away from the legs,
and onto the sternum.[29]A
similar change occurred, independently, with the female
gonopores. The movement of the
female gonopore to the sternum defines thecladeEubrachyura, and
the later change in the
position of the male gonopore defines theThoracotremata. It is
still a subject of debate
whether those crabs where the female, but not male, gonopores
are situated on the
sternum, form amonophyletic group.[28]
[edit]Superfamilies
Dromia personata(Dromiacea:Dromiidae)
Ranina ranina(Raninoida:Raninidae)
http://en.wikipedia.org/wiki/Carcinisationhttp://en.wikipedia.org/wiki/Carcinisationhttp://en.wikipedia.org/wiki/Carcinisationhttp://en.wikipedia.org/wiki/Telsonhttp://en.wikipedia.org/wiki/Telsonhttp://en.wikipedia.org/wiki/Telsonhttp://en.wikipedia.org/wiki/Uropodhttp://en.wikipedia.org/wiki/Uropodhttp://en.wikipedia.org/wiki/Uropodhttp://en.wikipedia.org/wiki/Sternum_(arthropod)http://en.wikipedia.org/wiki/Sternum_(arthropod)http://en.wikipedia.org/wiki/Sternum_(arthropod)http://en.wikipedia.org/wiki/Gonoporehttp://en.wikipedia.org/wiki/Gonoporehttp://en.wikipedia.org/wiki/Gonoporehttp://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Crab#cite_note-28http://en.wikipedia.org/wiki/Crab#cite_note-28http://en.wikipedia.org/wiki/Crab#cite_note-28http://en.wikipedia.org/wiki/Cladehttp://en.wikipedia.org/wiki/Cladehttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Monophylyhttp://en.wikipedia.org/wiki/Monophylyhttp://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=9http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=9http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=9http://en.wikipedia.org/wiki/Dromia_personatahttp://en.wikipedia.org/wiki/Dromia_personatahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromiidaehttp://en.wikipedia.org/wiki/Dromiidaehttp://en.wikipedia.org/wiki/Dromiidaehttp://en.wikipedia.org/wiki/Ranina_raninahttp://en.wikipedia.org/wiki/Ranina_raninahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Ranina_ranina.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/File:Dromia_personata.jpghttp://en.wikipedia.org/wiki/Raninidaehttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Ranina_raninahttp://en.wikipedia.org/wiki/Dromiidaehttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromia_personatahttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=9http://en.wikipedia.org/wiki/Crab#cite_note-Martin_.26_Davis-27http://en.wikipedia.org/wiki/Monophylyhttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Cladehttp://en.wikipedia.org/wiki/Crab#cite_note-28http://en.wikipedia.org/wiki/Pleopodhttp://en.wikipedia.org/wiki/Gonoporehttp://en.wikipedia.org/wiki/Sternum_(arthropod)http://en.wikipedia.org/wiki/Uropodhttp://en.wikipedia.org/wiki/Telsonhttp://en.wikipedia.org/wiki/Carcinisation
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Corystes cassivelaunus(Heterotremata:Corystidae)
Ocypode quadrata(Thoracotremata:Ocypodidae)
Numbers of extant and extinct () species are given in
brackets.[17]The
superfamilyEocarcinoidea, containingEocarcinusandPlatykotta, was
formerly thought to
contain the oldest crabs; it is now considered part of
theAnomura.[30]
SectionDromiacea
Dakoticancroidea(6)
Dromioidea(147, 85)
Glaessneropsoidea(45)
Homolodromioidea(24, 107)
Homoloidea(73, 49)
SectionRaninoida(46, 196)
SectionCyclodorippoida(99, 27) SectionEubrachyura
SubsectionHeterotremata
Aethroidea(37, 44)
Bellioidea(7)
Bythograeoidea(14)
http://en.wikipedia.org/wiki/Corystes_cassivelaunushttp://en.wikipedia.org/wiki/Corystes_cassivelaunushttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Corystidaehttp://en.wikipedia.org/wiki/Corystidaehttp://en.wikipedia.org/wiki/Corystidaehttp://en.wikipedia.org/wiki/Ocypode_quadratahttp://en.wikipedia.org/wiki/Ocypode_quadratahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Eocarcinoideahttp://en.wikipedia.org/wiki/Eocarcinoideahttp://en.wikipedia.org/wiki/Eocarcinoideahttp://en.wikipedia.org/wiki/Eocarcinushttp://en.wikipedia.org/wiki/Eocarcinushttp://en.wikipedia.org/wiki/Eocarcinushttp://en.wikipedia.org/wiki/Platykottahttp://en.wikipedia.org/wiki/Platykottahttp://en.wikipedia.org/wiki/Platykottahttp://en.wikipedia.org/wiki/Anomurahttp://en.wikipedia.org/wiki/Anomurahttp://en.wikipedia.org/wiki/Crab#cite_note-Chablais-29http://en.wikipedia.org/wiki/Crab#cite_note-Chablais-29http://en.wikipedia.org/wiki/Crab#cite_note-Chablais-29http://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Dakoticancroideahttp://en.wikipedia.org/wiki/Dakoticancroideahttp://en.wikipedia.org/wiki/Dromioideahttp://en.wikipedia.org/wiki/Dromioideahttp://en.wikipedia.org/wiki/Glaessneropsoideahttp://en.wikipedia.org/wiki/Glaessneropsoideahttp://en.wikipedia.org/wiki/Homolodromioideahttp://en.wikipedia.org/wiki/Homolodromioideahttp://en.wikipedia.org/wiki/Homoloideahttp://en.wikipedia.org/wiki/Homoloideahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Aethroideahttp://en.wikipedia.org/wiki/Aethroideahttp://en.wikipedia.org/wiki/Bellioideahttp://en.wikipedia.org/wiki/Bellioideahttp://en.wikipedia.org/wiki/Bythograeoideahttp://en.wikipedia.org/wiki/Bythograeoideahttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Ocypode_quadrata_(Martinique).jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/File:Corystes_cassivelaunus.jpghttp://en.wikipedia.org/wiki/Bythograeoideahttp://en.wikipedia.org/wiki/Bellioideahttp://en.wikipedia.org/wiki/Aethroideahttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Eubrachyurahttp://en.wikipedia.org/wiki/Cyclodorippoidahttp://en.wikipedia.org/wiki/Raninoidahttp://en.wikipedia.org/wiki/Homoloideahttp://en.wikipedia.org/wiki/Homolodromioideahttp://en.wikipedia.org/wiki/Glaessneropsoideahttp://en.wikipedia.org/wiki/Dromioideahttp://en.wikipedia.org/wiki/Dakoticancroideahttp://en.wikipedia.org/wiki/Dromiaceahttp://en.wikipedia.org/wiki/Crab#cite_note-Chablais-29http://en.wikipedia.org/wiki/Anomurahttp://en.wikipedia.org/wiki/Platykottahttp://en.wikipedia.org/wiki/Eocarcinushttp://en.wikipedia.org/wiki/Eocarcinoideahttp://en.wikipedia.org/wiki/Crab#cite_note-Ng-16http://en.wikipedia.org/wiki/Ocypodidaehttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Ocypode_quadratahttp://en.wikipedia.org/wiki/Corystidaehttp://en.wikipedia.org/wiki/Heterotrematahttp://en.wikipedia.org/wiki/Corystes_cassivelaunus
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8/3/2019 Crab 2
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Calappoidea(101, 71)
Cancroidea(57, 81)
Carpilioidea(4, 104)
Cheiragonoidea(3, 13)
Corystoidea(10, 5)
Componocancroidea(1)
Dairoidea(4, 8)
Dorippoidea(101, 73)
Eriphioidea(67, 14)
Gecarcinucoidea(349)
Goneplacoidea(182, 94)
Hexapodoidea(21, 25)
Leucosioidea(488, 113)
Majoidea(980, 89)
Orithyioidea(1)
Palicoidea(63, 6)
Parthenopoidea(144, 36)
Pilumnoidea(405, 47)
Portunoidea(455, 200)
Potamoidea(662, 8)
Pseudothelphusoidea(276)
Pseudozioidea(22, 6)
Retroplumoidea(10, 27)
Trapezioidea(58, 10)
Trichodactyloidea(50)
Xanthoidea(736, 134)
SubsectionThoracotremata
Cryptochiroidea(46)
Grapsoidea(493, 28)
Ocypodoidea(304, 14)
Pinnotheroidea(304, 13)
http://en.wikipedia.org/wiki/Calappoideahttp://en.wikipedia.org/wiki/Calappoideahttp://en.wikipedia.org/wiki/Cancroideahttp://en.wikipedia.org/wiki/Cancroideahttp://en.wikipedia.org/wiki/Carpilioideahttp://en.wikipedia.org/wiki/Carpilioideahttp://en.wikipedia.org/wiki/Cheiragonoideahttp://en.wikipedia.org/wiki/Cheiragonoideahttp://en.wikipedia.org/wiki/Corystoideahttp://en.wikipedia.org/wiki/Corystoideahttp://en.wikipedia.org/wiki/Componocancroideahttp://en.wikipedia.org/wiki/Componocancroideahttp://en.wikipedia.org/wiki/Dairoideahttp://en.wikipedia.org/wiki/Dairoideahttp://en.wikipedia.org/wiki/Dorippoideahttp://en.wikipedia.org/wiki/Dorippoideahttp://en.wikipedia.org/wiki/Eriphioideahttp://en.wikipedia.org/wiki/Eriphioideahttp://en.wikipedia.org/wiki/Gecarcinucoideahttp://en.wikipedia.org/wiki/Gecarcinucoideahttp://en.wikipedia.org/wiki/Goneplacoideahttp://en.wikipedia.org/wiki/Goneplacoideahttp://en.wikipedia.org/wiki/Hexapodoideahttp://en.wikipedia.org/wiki/Hexapodoideahttp://en.wikipedia.org/wiki/Leucosioideahttp://en.wikipedia.org/wiki/Leucosioideahttp://en.wikipedia.org/wiki/Majoideahttp://en.wikipedia.org/wiki/Majoideahttp://en.wikipedia.org/wiki/Orithyioideahttp://en.wikipedia.org/wiki/Orithyioideahttp://en.wikipedia.org/wiki/Palicoideahttp://en.wikipedia.org/wiki/Palicoideahttp://en.wikipedia.org/wiki/Parthenopoideahttp://en.wikipedia.org/wiki/Parthenopoideahttp://en.wikipedia.org/wiki/Pilumnoideahttp://en.wikipedia.org/wiki/Pilumnoideahttp://en.wikipedia.org/wiki/Portunoideahttp://en.wikipedia.org/wiki/Portunoideahttp://en.wikipedia.org/wiki/Potamoideahttp://en.wikipedia.org/wiki/Potamoideahttp://en.wikipedia.org/wiki/Pseudothelphusoideahttp://en.wikipedia.org/wiki/Pseudothelphusoideahttp://en.wikipedia.org/wiki/Pseudozioideahttp://en.wikipedia.org/wiki/Pseudozioideahttp://en.wikipedia.org/wiki/Retroplumoideahttp://en.wikipedia.org/wiki/Retroplumoideahttp://en.wikipedia.org/wiki/Trapezioideahttp://en.wikipedia.org/wiki/Trapezioideahttp://en.wikipedia.org/wiki/Trichodactyloideahttp://en.wikipedia.org/wiki/Trichodactyloideahttp://en.wikipedia.org/wiki/Xanthoideahttp://en.wikipedia.org/wiki/Xanthoideahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Cryptochiroideahttp://en.wikipedia.org/wiki/Cryptochiroideahttp://en.wikipedia.org/wiki/Grapsoideahttp://en.wikipedia.org/wiki/Grapsoideahttp://en.wikipedia.org/wiki/Ocypodoideahttp://en.wikipedia.org/wiki/Ocypodoideahttp://en.wikipedia.org/wiki/Pinnotheroideahttp://en.wikipedia.org/wiki/Pinnotheroideahttp://en.wikipedia.org/wiki/Pinnotheroideahttp://en.wikipedia.org/wiki/Ocypodoideahttp://en.wikipedia.org/wiki/Grapsoideahttp://en.wikipedia.org/wiki/Cryptochiroideahttp://en.wikipedia.org/wiki/Thoracotrematahttp://en.wikipedia.org/wiki/Xanthoideahttp://en.wikipedia.org/wiki/Trichodactyloideahttp://en.wikipedia.org/wiki/Trapezioideahttp://en.wikipedia.org/wiki/Retroplumoideahttp://en.wikipedia.org/wiki/Pseudozioideahttp://en.wikipedia.org/wiki/Pseudothelphusoideahttp://en.wikipedia.org/wiki/Potamoideahttp://en.wikipedia.org/wiki/Portunoideahttp://en.wikipedia.org/wiki/Pilumnoideahttp://en.wikipedia.org/wiki/Parthenopoideahttp://en.wikipedia.org/wiki/Palicoideahttp://en.wikipedia.org/wiki/Orithyioideahttp://en.wikipedia.org/wiki/Majoideahttp://en.wikipedia.org/wiki/Leucosioideahttp://en.wikipedia.org/wiki/Hexapodoideahttp://en.wikipedia.org/wiki/Goneplacoideahttp://en.wikipedia.org/wiki/Gecarcinucoideahttp://en.wikipedia.org/wiki/Eriphioideahttp://en.wikipedia.org/wiki/Dorippoideahttp://en.wikipedia.org/wiki/Dairoideahttp://en.wikipedia.org/wiki/Componocancroideahttp://en.wikipedia.org/wiki/Corystoideahttp://en.wikipedia.org/wiki/Cheiragonoideahttp://en.wikipedia.org/wiki/Carpilioideahttp://en.wikipedia.org/wiki/Cancroideahttp://en.wikipedia.org/wiki/Calappoidea
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8/3/2019 Crab 2
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[edit]Cultural influences
Both theconstellationCancerand theastrological signCancerare
named after the crab,
and depicted as a crab.John Bevisfirst observed theCrab
Nebulaand its resemblance tothe animal in 1731. TheCrab pulsarlies
at the centre of the nebula.
TheMochepeople of ancientPeruworshipped nature, especially the
sea,[31]and often
depicted crabs in their art.[32]InGreek mythology,Karkinoswas a
crab that came to the aid
of theLernaean Hydraas it battledHeracles.
[edit]
http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=10http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=10http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=10http://en.wikipedia.org/wiki/Constellationhttp://en.wikipedia.org/wiki/Constellationhttp://en.wikipedia.org/wiki/Cancer_(constellation)http://en.wikipedia.org/wiki/Cancer_(constellation)http://en.wikipedia.org/wiki/Cancer_(constellation)http://en.wikipedia.org/wiki/Astrological_signhttp://en.wikipedia.org/wiki/Astrological_signhttp://en.wikipedia.org/wiki/Cancer_(astrology)http://en.wikipedia.org/wiki/Cancer_(astrology)http://en.wikipedia.org/wiki/Cancer_(astrology)http://en.wikipedia.org/wiki/John_Bevishttp://en.wikipedia.org/wiki/John_Bevishttp://en.wikipedia.org/wiki/John_Bevishttp://en.wikipedia.org/wiki/Crab_Nebulahttp://en.wikipedia.org/wiki/Crab_Nebulahttp://en.wikipedia.org/wiki/Crab_Nebulahttp://en.wikipedia.org/wiki/Crab_pulsarhttp://en.wikipedia.org/wiki/Crab_pulsarhttp://en.wikipedia.org/wiki/Crab_pulsarhttp://en.wikipedia.org/wiki/Mochehttp://en.wikipedia.org/wiki/Mochehttp://en.wikipedia.org/wiki/Mochehttp://en.wikipedia.org/wiki/Peruhttp://en.wikipedia.org/wiki/Peruhttp://en.wikipedia.org/wiki/Peruhttp://en.wikipedia.org/wiki/Crab#cite_note-30http://en.wikipedia.org/wiki/Crab#cite_note-30http://en.wikipedia.org/wiki/Crab#cite_note-30http://en.wikipedia.org/wiki/Crab#cite_note-31http://en.wikipedia.org/wiki/Crab#cite_note-31http://en.wikipedia.org/wiki/Crab#cite_note-31http://en.wikipedia.org/wiki/Greek_mythologyhttp://en.wikipedia.org/wiki/Greek_mythologyhttp://en.wikipedia.org/wiki/Karkinoshttp://en.wikipedia.org/wiki/Karkinoshttp://en.wikipedia.org/wiki/Karkinoshttp://en.wikipedia.org/wiki/Lernaean_Hydrahttp://en.wikipedia.org/wiki/Lernaean_Hydrahttp://en.wikipedia.org/wiki/Lernaean_Hydrahttp://en.wikipedia.org/wiki/Heracleshttp://en.wikipedia.org/wiki/Heracleshttp://en.wikipedia.org/wiki/Heracleshttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=11http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=11http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=11http://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=11http://en.wikipedia.org/wiki/Heracleshttp://en.wikipedia.org/wiki/Lernaean_Hydrahttp://en.wikipedia.org/wiki/Karkinoshttp://en.wikipedia.org/wiki/Greek_mythologyhttp://en.wikipedia.org/wiki/Crab#cite_note-31http://en.wikipedia.org/wiki/Crab#cite_note-30http://en.wikipedia.org/wiki/Peruhttp://en.wikipedia.org/wiki/Mochehttp://en.wikipedia.org/wiki/Crab_pulsarhttp://en.wikipedia.org/wiki/Crab_Nebulahttp://en.wikipedia.org/wiki/John_Bevishttp://en.wikipedia.org/wiki/Cancer_(astrology)http://en.wikipedia.org/wiki/Astrological_signhttp://en.wikipedia.org/wiki/Cancer_(constellation)http://en.wikipedia.org/wiki/Constellationhttp://en.wikipedia.org/w/index.php?title=Crab&action=edit§ion=10
