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Topic: Porcelain crab

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	Porcelain crab - Wikipedia, the free encyclopedia
		Porcelain crabs can be distinguished from the true crabs by the apparent number of walking legs (three instead of four pairs, the fourth pair is actually hidden under the carapace), the apparent lack of a wrist (carpal) segment on the chelipeds, and long antennae originating on the front outside of the eye stalks.
		The abdomen of the porcelain crab is long and folded underneath it, free to move.
		Porcelain crabs share the general body plan of a squat lobster (Galatheidae), but their bodies are more compact and flattened, an adaptation for living and hiding under rocks, as well as squeezing into little nooks and crannies.
	en.wikipedia.org /wiki/Porcelain_crab (452 words)

	Crabs
		Crabs are one of the most distinctive animals found on the shore.
		Crabs are often seen with legs missing, this is due to their defence strategy of purposely shedding a leg or claw to a predator.
		It is a swimming crab and processes flattened paddles on the rear pair of legs.
	www.pznow.co.uk /marine/crabs.html (1183 words)

	porcelain - definition by dict.die.net
		Porcelain was called after this shell, either on account of its smoothness and whiteness, or because it was believed to be made from it.
		Porcelain crab (Zo["o]l.), any crab of the genus Porcellana and allied genera (family Porcellanid[ae]).
		Porcelain printing, the transferring of an impression of an engraving to porcelain.
	dict.die.net /porcelain (140 words)

	AquariumDomain.com - Porcelain Anemone Crab
		Porcelain Crabs scavenge for excess meaty foods and both keep them from spoiling the water and provide a secondary food source for anemones that through their symbiotic relationship with the Porcelain Crab receive the leftover morsels.
		Porcelain Anemone Crabs may attempt to defend their territory from clownfish that try to establish themselves among the anemone, although they are not very aggressive and the clownfish will generally prevail.
		Porcelain Anemone Crabs are generally aggressive toward other similarly sized crabs, and should not be kept with larger, aggressive crabs, which may attack it.
	www.aquariumdomain.com /inverts/porcelainCrap.asp (278 words)

	CRAB A LIL ATTITUDE (Site not responding. Last check: 2007-10-08)
		Crabs are mainly scavengers of sorts, underwater vultures that feed on the leftover carrion of the sea.
		Porcelain crabs do look somewhat fragile with their flattened carapaces and bodies, but make up for this with enlarged claws which appear about half the size of their entire bodies.
		The Green Porcelain crab is mottled shades of green and the Red Porcelain crab is a deep red, with the Banded Porcelain crab banded red with shades of yellow to brown.
	www.timespub.tc /Features/Archive/Fall2003/crab.htm (4049 words)

	Shedd Aquarium
		While the crab grows, it periodically molts or sheds its exoskeleton and produces a new larger one.
		Porcelain crabs are often found near the shore living under large rocks where people can easily search for them.
		The eyes of the tiny crab are high on stalks and protected by a clear casing that is part of the crab’s hard outer shell.
	www.sheddaquarium.org /sea/fact_sheets_print.cfm?id=98 (1319 words)

	Cold-climate creatures can take the heat, researchers find
		The population of Porcelain crabs (Petrolisthes cinctipes) along California’s central coast has dramatically declined in the last 60 years as sea surface temperatures have increased.
		Stillman discovered that porcelain crabs in the cool Pacific Northwest have the ability to adjust to larger increases in habitat temperature than crabs living in the warm coastal waters of Mexico.
		Crabs from Oregon were held at a constant temperature of either 47 F (8 C) or 65 F (18 C), and crabs from Mexico were kept at temperatures of 59 F (15 C) or 77 F (25 C).
	news-service.stanford.edu /news/2003/july9/crab-79.html (962 words)

	North Coast Intertidal Guide: Crabs and Barnacles
		The Pacific Rock Crab chips away at the hermit crab shell with its chelipeds until the hermit crab is exposed, at which time the crab eats it.
		The Striped Shore Crab is equipped with heavy chelipeds that are mottled reddish-purple dorsaly and white venterally.
		A neat fact about this crab is that they are known to forage in and out of the water, therefore, half of their life is spent on land.
	www.humboldt.edu /~intertid/crabarn/crab_barn.html (1526 words)

	[No title] (Site not responding. Last check: 2007-10-08)
		The porcelain crab gains an extra measure of protection through its association with the sea pen.
		Look carefully at this photograph and you can see that this porcelain crab has a fine web-like structure at the end of two of its feeding appendages (maxillipeds), as do other porcelain crab species.
		Porcelain crabs are versatile since they can also feed directly using their claws.
	www.reefimages.com /Camouflage/camouflage_06b.html (267 words)

	marine Life
		The biggest land crab is the coconut crab (Birgus latro), which lives on islands in the Pacific Ocean having a leg span up to a meter.
		The Porcelain crab is a bit of a dilemma or taxonomists as it has a tail, which is virtually not found among crabs.
		Strangely enough this rusty red colored crab enjoys publicity as it sits on the edge of the bubble coral highly visible against the white pearly color of the coral.
	www.diver.com.ph /thaidiver/TD2-1/TD-2.1Crabby_Delights.htm (1097 words)

	ECHENG.COM: Wakatobi, December 2003 - Crustaceans
		Soft coral crabs are very well camouflaged in their hosts: they camouflage themselves by eating the polyps (the color makes its way into the crab's body) and by pulling polyp branches over their bodies.
		Also interesting were orangutan crabs, which we found sitting in bubble coral, mushroom coral, frogspawn coral, and hammer coral.
		Porcelain crab (Neopetrolisthes oshimai) in a carpet anemone
	www.echeng.com /travel/wakatobi/dive_crus (355 words)

	An Invasive Crab in the South Atlantic Bight: Friend or Foe?
		The green porcelain crab, Petrolisthes armatus, recently invaded oyster reefs of the South Atlantic Bight in densities of up to several thousand crabs/m2, but the effects of this invasion remain undetermined.
		The combinations were: (1) no crabs, (2) mud crabs (Panopeus herbstii), (3) mean June density of porcelain crabs + mud crabs, and (4) 3x mean June density of porcelain crabs + mud crabs.
		Preliminary data suggest that oyster settlement was more successful when there were no crabs and that mud crabs caused considerable damage to oysters and mussels when no porcelain crabs were available as an alternate food source.
	sgnis.org /publicat/hollehaym.htm (226 words)

	[No title]
		The Porcelain Crab is common throughout the tropical oceans of the world, and has a flat, round body with two large front claws.
		These crabs have a pair of front arms called maxillipeds, which have ends that are feather-like in appearance.
		Porcelain Crabs live together in pairs typically found within or under rocks in nature.
	www.liveaquaria.com /product/prod_Display.cfm?pCatId=1963 (289 words)

	[echeng.com] Australia/Coral Sea 2003
		At Fanfare, Mia and I spotted a float at the top of one of the fingers labeled "Porcelain Crab." At the flat was a marvelous carpet anemone with a few clownfish and many juvenile domino damsels in it.
		After searching for several minutes, we spotted a beautiful porcelain crab just under the anemone's, sitting perfectly still with claws crossed.
		During the second dive, the crab had moved, but I was able to find a second, juvenile crab in the anemone, which I managed to shoot once before it hid.
	echeng.com /travel/australia/porcelaincrab.shtml (167 words)

	Commensal Porcelain Crab species page (Site not responding. Last check: 2007-10-08)
		The commensal porcelain crab lives on the floor of muddy bays across southern Australia from Queensland to Perth but is not known from Tasmania.
		This species is often found in the bottom of the papery tubes of a species of polychaete worm or in the siphons of bivalve molluscs.
		What benefit the crab gets from these associations is not understood but the behaviour does allow them to survive in what would otherwise be a very dirty environment.
	www.museum.vic.gov.au /crust/mov1592t.html (142 words)

	Statement of Research Interests
		Laboratory acclimations to constant temperatures are being used to determine baseline responses, and acclimation to fluctuating thermal regimes (such as those in the natural intertidal zone) are being used to define the kinetics and magnitude of response to variation in maximum, minimum, and mean thermal signals.
		Construction of a phylogenetic tree for porcelain crabs allowed me to interpret my comparative analyses within an evolutionary context and presented a new set of species for eastern Pacific phylogeography (Stillman and Reeb, 2001).
		In conjunction with Rob Toonen, Gustav Pauley, and other researchers, porcelain crab samples are currently being collected from around the Pacific Rim and from Pacific Islands that will be used for a Pacific Ocean-wide phylogeographic analysis of the Porcellanidae.
	userwww.sfsu.edu /~stillmaj/Stillman_research.html (1839 words)

	SquatLobFAQs
		The crab, which can’t even be an inch long, seems to be trying to bully the trigger out of its hiding spot.
		The crabs on these pictures are porcelain crabs and look like an undescribed species I only know from a small group of islands of the Caribbean coast of Colombia.
		Hello Robert, regarding the crab I suggested you to be a porcelain crab (under Calappa sp.
	www.wetwebmedia.com /squatlobfaqs.htm (2368 words)

	[No title]
		The Porcelain Anemone Crab is white with red spots and/or blotches of red or brown.
		Porcelain Anemone Crabs live together in pairs under the protection of an anemone.
		It is aggressive toward conspecifics, and should not be kept with larger, aggressive crabs which may attack it.
	www.liveaquaria.com /product/prod_Display.cfm?pCatId=629 (239 words)

	PORCELAIN CRAB .<..>. crab pots, shellfish, hermit crab, scallop, blue crab, oysters (Site not responding. Last check: 2007-10-08)
		He did not talk porcelain crab any one; went out shooting from morning to night; endured his mother's timid caresses with undisguised impatience, and was merciless in his ridicule of his brothers, and of their wives (they were both married by that time)....
		She was devoted with her whole soul to her benefactress; old Lutchinov she detested, porcelain crab more than once, sitting at table, she shot such fl looks at him, that even the servant handing the dishes felt uncomfortable.
		PORCELAIN CRAB : culture of girls of noble family in the time of Catherine; but how is one to distinguish what they had gradually gained in the course of their long lives from what they were in porcelain crab days of their youth?
	www.toronotobeachdentist.com /porcelain-crab.html (609 words)

	porcelain crab set up home in our bta - UltimateReef.com Bulletin Board (Site not responding. Last check: 2007-10-08)
		I persuaded (gently honest!!!) the crab to move from Nem and within a couple of days the clowns were back.
		I am with Tiggsy on this I am staggered a Porcelain crab would be able to evict any species of clown.
		Out of curiosity what species of porcelain crab do you have (or colour pattern) as some are much more difficult to keep than others.
	www.ultimatereef.net /forums/showthread.php?p=1540100#post1540100 (359 words)

	Anemone Crab
		These hardy crabs live in carpet anemones in the wild, and thrive in the aquarium.
		They do not need an anemone and readily make due with whatever food and shelter is present.
		If fish are being fed in the aquarium, these crabs do not need additional feeding.
	www.marinecenter.com /inverts/crabs/anemonecrab (102 words)

	CRABS Photo Gallery by clippo at pbase.com
		Most people are familiar with hermit crabs, but there are a range of other kinds that can be inlcuded in a reef tank with careful planning and research.
		Other dwarf hermits are also useful but care should be taken to provide plenty of spare shells of the right size or snails may be killed for their shells.
		Other types of crabs, including those which often arrive as hitch-hikers in live rock should be watched carefully to make sure they do not damage anything (being rehoused, traded or returned to the store if they do).
	www.pbase.com /clippo/crabs (153 words)

	Crab Gifts for Animal Lovers
		They are crustaceans with five pairs of legs, the first pair modified to form a pair of pincers, a flattish shell, and a short, broad abdomen folded under its thorax.
		There are two main groups of crabs: the Brachyura or true crabs, and the Paguroidea, or hermit crabs.
		A number of animals with a similar shape are commonly called crabs, including the crab louse (an insect), the Horseshoe crab (in the class Merostomata).
	www.junglewalk.com /shop/crab-gifts-P2.htm (112 words)

	Lincoln Park
		The diversity on this beach was in the mid-range of the beaches, but it contained some relatively uncommon species such as the burrowing anemone and native oyster.
		Mottled sea stars and graceful decorator crabs were common, as was the red rock crab.
		The diversity of crabs is notable: red rock crab, Dungeness crab, graceful crab, Lophopanopeus bellus (fl-clawed crab), purple shore crab, Pugettia gracilis (graceful kelp crab), northern kelp crab, and yellow shore crab were found.
	dnr.metrokc.gov /wlr/waterres/beaches/lincoln.htm (1555 words)

	Monterey Bay Aquarium: Online Field Guide
		Tiny porcelain crabs live in abundance in Pacific Coast tide pools.
		If its camouflage fails and a predator threatens, a porcelain crab can drop a claw or leg to distract the attacker and give itself a chance to scurry away.
		A female porcelain crab less than an inch long may carry nearly 1,600 eggs at a time (though most carry only around 600).
	www.mbayaq.org /efc/living_species/default.asp?hOri=0&hab=4&inhab=420 (216 words)

	JGI - Why Sequence a Porcelain Crab?
		Porcelain crabs are of interest in addressing questions of thermal phenotype because of their high species diversity and the large variation in thermal phenotype among species, as well as the biogeographic patterning of these crabs along latitudinal thermal stress gradients.
		This project entails the sequencing of cDNA libraries from one porcelain crab species, Petrolisthes cinctipes.
		There is great potential for additional use of the crab cDNA library to be generated for this project.
	www.jgi.doe.gov /sequencing/why/CSP2006/porcelaincrab.html (298 words)

	Can crabs get used to warmer water?
		Porcelian crabs like to hide under stones during low tide to keep cool.
		Ecologist Jonathon Stillman of Stanford University in California found that some crab species, called Porcelain crabs, that live along the West Coast may have more trouble getting used to warmer water temperatures than others, according to a study to be published in the 4 July 2003 issue of the journal Science.
		He discovered that one crab species, found along the shores of the Northern Gulf of California, is probably already having trouble getting used to the warmer water that it now lives in.
	www.eurekalert.org /features/kids/2003-07/asfg-ccg020405.php (241 words)

	Porcelain Crabs (Petrolisthes) of Singapore Seashores (via CobWeb/3.1 planetlab2.tamu.edu) (Site not responding. Last check: 2007-10-08)
		Almost all are filter feeders, using their hairy mouthparts to actively trap small animals in the water.
		They are not true crabs, and are easily distinguished from them by appearing to have only 8 limbs (including the pincer).
		The tenth pair is greatly reduced and is usually tucked under the abdomen.
	mangrove.nus.edu.sg.cob-web.org:8888 /pub/seashore/text/184.htm (105 words)

	Dietary Preference and Digestive Enzyme Activities as Indicators of Trophic Resource Utilization by Six Species of Crab ...
		The identification of an alpha-amylase in aqueous extracts of the hepatopancreas of Carcinus maenas, the common shore crab.
		Griffin, D. The ecological distribution of grapsid and ocypodid shore crabs in Tasmania.
		Kyomo, J. Variations in the feeding habits of males and females of the crab Sesarma intermedia.
	www.biolbull.org /cgi/content/full/208/1/36 (4293 words)

	Porcelain Crab (Site not responding. Last check: 2007-10-08)
		We'd finished our dive, and were poking along the wall in about 15 feet of water when I found a fluorescent purple anemone.
		I hung around for a minute or so and spotted a crab no bigger than my fingernail, but I was out of air and film.
		After a rush trip back to the boat for a new roll and a new tank, we dropped in, hoping we could find the anemone again.
	www.kasson.com /Solomons96/porc-cb.htm (119 words)

	Reef aquarium, emerald crabs, turbos snails etc. (Site not responding. Last check: 2007-10-08)
		Emerald Crab - Mithrax sculptus - Emerald Crabs feed upon many types of algae including bubble algae which is what makes this particular crab so popular.
		- An interesting blue/grey crab that is similar in habit to the Sally Lightfoot Crab.
		Horseshoe Crab Not a true crab but a very good detritus remover and sand sifter.
	www.reeftopia.com /Crabs_and_Snails218.html (558 words)

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