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Topic: Sea spider

	Sea spider - Wikipedia, the free encyclopedia
		Sea spiders, also called Pantopoda or pycnogonids, are marine arthropods of class Pycnogonida.
		Furthermore, the evolutionary lineage of the sea spider group as a whole is disputed: their fossil record is sketchy at best, with the three earliest known genera originating in the Devonian.
		Some believe (or once believed) sea spiders to be among the chelicerates, together with horseshoe crabs, true spiders, mites, ticks and scorpions.
	en.wikipedia.org /wiki/Sea_spider (893 words)

	sea spider or Pycnogonids
		Besides living underwater, sea spiders differ from their land cousins in other ways-- they don't spin webs, and may have from four to six pairs of long segmented legs, versus four pair for land spiders.
		Deep-sea researcher Dr. Paul H. Yancey notes large sea spiders are known to "stride over the abyssal mud with their long legs, using a proboscis to suck tissues from sessile prey..." and has photos of two such specimens on his deep sea pages web site.
		Like their land-lubber cousins, sea spiders are carnivorous, some feeding on other invertebrates by sucking out the juices, while others tear their prey apart and pass it into a proboscis for feeding.
	www.divegallery.com /sea_spider.htm (372 words)

	BBC NEWS \| Science/Nature \| Early sea spider flashes pincers
		Living sea spiders are small marine arthropods with slender, segmented bodies, a proboscis and four pairs of spindly legs.
		An eruption that carpeted the area in volcanic ash was responsible for the sea spider's spectacular, three-dimensional preservation.
		Sea spiders are so rarely preserved that there are only a handful of specimens in the fossil record.
	news.bbc.co.uk /go/newsFeedXML/moreover/-/1/hi/sci/tech/3756614.stm (683 words)

	Ancient sea spider fossils discovered in volcanic ash
		New Haven, Conn. — Volcanic ash that encased and preserved sea life in the Silurian age 425 million years ago near Herefordshire, UK has yielded fossils of an ancient sea spider, or pycnogonid, one of the most unusual types of arthropod in the seas today.
		Sea spiders are soft-bodied arthropods, found widely in modern oceans.
		Sea spiders have a long proboscis and unusual limb structures used in mating and carrying brooding embryos.
	www.eurekalert.org /pub_releases/2004-10/yu-ass102104.php (406 words)

	Speed Sailing Boats Torix Bennett's Sea Spider (Site not responding. Last check: 2007-09-06)
		Sea Spider 101 at Speed Week 1999 where she achieved here highest speed to date of 26.44.
		Sea Spider made a total of 31 runs during the week, an outstanding showing for an amateur-built and campaigned boat.
		Sea Spider is ahead of boats like Slingshot, at 25.0, NF2 (by Rave designer William Bradfield), at 23, and Mayfly, still residing at England's Victoria and Albert museum, at 23 kts.
	www.speedsailing.com /Boats_torix.htm (287 words)

	Oceanlink \| marine sciences education and fun (Site not responding. Last check: 2007-09-06)
		Sea spiders are classified in the phylum Arthropoda and the class Pycnogonida.
		Sea spiders are found throughout the worlds oceans, in a variety of habitats, ranging from the intertidal to the subtidal.
		Many sea spiders are carnivores and feed on hydroids, soft corals, anemones, bryozoans, small polychaetes, and sponges, but some species will also eat algae.
	oceanlink.island.net /oinfo/biodiversity/pycnog.html (141 words)

	AllRefer.com - sea spider (Zoology: Invertebrates) - Encyclopedia
		sea spider, common name for members of the class Pycnogonida, long-legged, rather spiderlike organisms of the phylum Chelicerata, widely distributed in marine waters.
		Most are tiny, from 1 to 9 mm (0.04–0.36 in.), and live in littoral regions, crawling about over the surface of sessile animal colonies or seaweeds.
		Sea spiders are classified in the phylum Chelicerata, class Pycnogonida.
	reference.allrefer.com /encyclopedia/S/seaspide.html (311 words)

	News: Ancient sea spider settles modern-day debate
		For two centuries the relationship of sea spiders to other arthropods has been in debate, partly because the delicate form of sea spiders means they do not fossilise easily, and so they have a very poor fossil record.
		In the process they created a picture of an adult sea spider that is some 35 million years older than any previously discovered.
		The species was found to have the distinctive characteristics of a sea spider, but it was also found to have the prominent pincers that classify it as a member of the chelicerate group of arthropods.
	www.admin.ox.ac.uk /po/news/2004-05/oct/25.shtml (266 words)

	Ancient Sea Spider Related to Scorpion
		01:45 pm ET The fossil of an ancient sea spider thought to be related to modern scorpions has been discovered near Herefordshire in the UK The fossil of an ancient sea spider thought to be related to modern scorpions has been discovered near Herefordshire in the UK.
		Sea spiders are soft-bodied arthropods common in oceans today.
		Sea spiders are delicate, so few of their fossils exist.
	www.livescience.com /animalworld/041021_sea_spider.html (312 words)

	Sea spider - Encyclopedia, History, Geography and Biography
		Sea spider - Encyclopedia, History, Geography and Biography
		Usually measuring between one and ten millimeters, they crawl slowly along (although some do swim), feeding on hydroids, soft corals, anemones, bryozoans, and sponges.
		This encyclopedia, history, geography and biography article about Sea spider contains research on
	www.arikah.com /encyclopedia/Sea_Spider (906 words)

	In the News
		A British sea spider fossil from 425 million years ago has also helped its modern-day descendants claim their rightful place on the tree of life.
		The ancient sea spider's prominent pincers show that today's sea spiders are properly grouped with chelicerates, which include the true spiders (arachnids) as well as scorpions and horseshoe crabs.
		This question had been difficult to answer before now because, despite their abundance, the delicate form of sea spiders means that they do not fossilize easily, explain the scientists from Oxford, Leicester, Yale in the 21 October 2004 Issue of Nature.
	www.le.ac.uk /gl/news/djsoctober2004.html (333 words)

	Yale Bulletin and Calendar
		Volcanic ash that encased and preserved sea life in the Silurian age 425 million years ago near Herefordshire, United Kingdom, has yielded fossils of a new species of ancient sea spider, or pycnogonid, one of the most unusual types of arthropod in the seas today.
		Sea spiders have a long proboscis and unusual limb structures, which are used in mating and carrying brooding embryos.
		Its large pincers place the sea spiders firmly within a larger grouping that includes scorpions, mites, ticks, the real spiders and the horseshoe crab, says Briggs.
	www.yale.edu /opa/v33.n8/story100.html (578 words)

	Anoplodactylus Laboratory Exercise (Site not responding. Last check: 2007-09-06)
		Chelicerata is a large taxon that includes spiders, scorpions, pseudoscorpions, ticks, mites, horseshoe crabs, sea spiders, and many others.
		Pycnogonids (= Pantopoda), or sea spiders, are benthic, marine arthropods, with a superficial resemblance to true spiders, but to which they are probably only distantly related.
		Sea spiders are gonochoric, fertilization is external, and there is a slight tendency to sexual dimorphism.
	www.lander.edu /rsfox/310anoplodLab.html (1771 words)

	Oceanscience: Sea Spider: Bottom mounts and Tripods for ADCPs, ADPs and Profilers
		The Sea Spider is an inexpensive, trouble-free tripod for your seafloor instrument packages.
		The Sea Spider can carry multiple instruments and a popup buoy for diverless recovery.
		The Sea Spider platform is built around a thick fiberglass casting that's designed for long-term immersion in seawater at any depth.
	www.oceanscience.com /spider.html (188 words)

	Ancient Sea Spider Fossils Discovered In Volcanic Ash
		Spider Blood Found In 20 Million Year Old Fossil (September 30, 2005) -- A scientist from the University of Manchester has discovered the first identified droplets of spider blood in a piece of amber up to 20 million years...
		(February 23, 2005) -- The biggest spider ever to have walked the earth has been exposed as a 'fraud' by a University of Manchester scientist, who claims the creature is more crab than creepy...
		Ancient Creature Fossilized By The Bacteria That Ate It (November 18, 2004) -- High in the mountains of Antarctica, Ohio State University geologists unearthed the fossil remains of a 180-million-year-old clam-like creature that was preserved in a very unusual way: by the...
	www.sciencedaily.com /releases/2004/10/041022105150.htm (607 words)

	Wildlife News:Ancient sea spider fossils discovered in volcanic ash (Site not responding. Last check: 2007-09-06)
		Wildlife News:Ancient sea spider fossils discovered in volcanic ash
		Volcanic ash that encased and preserved sea life in the Silurian age 425 million years ago near Herefordshire, UK has yielded fossils of an ancient sea spider, or pycnogonid, one of the most unusual types of arthropod in the seas today.
		The cavity later filled in with carbonate solids so we have a fossil record to study now.
	www.naturalworldtours.co.uk /articles2004/october/october2304j.htm (388 words)

	Population Genetics and Biology in a Deep-Sea Spider Crab.
		Population Genetics and Biology in a Deep-Sea Spider Crab.
		The Scottish Association for Marine Science, P.O. Box 3, Oban, Argyll, PA34 4AD, U.K. Samples of the majid spider crab, Encephaloides armstrongi, were collected from six stations along the continental slope of the western Arabian Sea at depths of 150 - 650 m.
		The biology and genetics of horizontally and vertically separated populations were studied.
	www.imbc.gr /biblio_serv/deepsea/X7-0009.html (456 words)

	MyUSTINET News: Team Finds Remains Of Ancient Sea Spider
		NEW HAVEN, Conn., Oct. 22 (UPI) -- Volcanic ash that encased and preserved sea life 425 million years ago has yielded fossils of an ancient sea spider.
		Researchers at Yale, which took part in a joint study with British researchers, identify the spider as a pycnogonid, one of the most unusual types of arthropod in the seas today.
		The research was carried out as part of a project on the Herefordshire fauna by a team made up of Derek Siveter and Mark Sutton at Oxford, Derek Briggs at Yale and David Siveter at Leicester.
	news.usti.net /newsstory/tw.science/2/wed/bu/Uus-ancientspider.Rmee_EOM.html (190 words)

	sea spider
		Sea Turtles, Iguanas, Toucans and Spider Monkeys Receive Guests in Marriott's Growing Geotourism Programs.
		Arcelia García Sánchez: y sus aventuras de "mujer araña": sí, ella es una chica big wall (gran pared), o sea, una especie de spider woman capaz de permanecer colgada de un peñasco (con cuerdas que ella misma coloca) hasta por más de cuatro días.
		ECOLOGY OF THE WOLF SPIDER, ARCTOSA SANCTAEROSAE (ARANEAE, LYCOSIDAE), ON DAUPHIN ISLAND, ALABAMA.
	www.infoplease.com /id/A0844226 (357 words)

	Hawk - You have a Phylum Pyconogonida (Sea Spider) - Topic Powered by Groupee Community (Site not responding. Last check: 2007-09-06)
		I think the combination of my crappy picture and my ill-advised use of the word "spider" have confused the issue.
		The appendages on my guys don't appear to be used for walking and they're held aloft when the critter is sitting on a rock, like tentacles, not legs.
		December 01, 2001 01:05 PM I haven't tried searching more under the genus, but it may still be a sea spider.
	aqualinkwebforum.com /eve/ubb.x/a/tpc/f/3556085422/m/5996066422 (320 words)

	A SILURIAN SEA SPIDER (Site not responding. Last check: 2007-09-06)
		Pycnogonids (sea spiders) have an extremely sparse fossil record, and are known globally from just four species based on a few tens of specimens from two localities.
		A new, exceptionally preserved sea spider from the Herefordshire deposit represents the oldest known adult by some 35 million years, the most completely known fossil species, and provides new insight into the early morphology of the Pycnogonida and its relationship to other arthropod groups.
		The morphology of this recently discovered form has been digitally reconstructed to produce a ‘virtual fossil’ in the round.
	gsa.confex.com /gsa/2004AM/finalprogram/abstract_74162.htm (211 words)

	Deep-sea giant sea spider (Site not responding. Last check: 2007-09-06)
		A giant deep-sea spider, nearly a foot across, is an impressive sight indeed.
		These animals make up for the small size of their bodies by accomodating vital organs such as gonads in their long legs.
		They feed upon corals and other sessile organisms, sucking up their contents through their enormous proboscis.
	www.exploretheabyss.com /photo/gallery/gallery/popups/pycnogonid.htm (51 words)

	Pharrryngula::Haliestes dasos, a sea spider
		Here's a pretty arachnid—'tis phylogenetically rather distant from th' more familiar spiders, belongin' t' its own order, th' Pycnogonida, and 'tis a marine beastie, and this particular one has been dead fer 425 million years, so I dern't think I'm treadin' on Mrs Tilton's turf.
		Pycnogonids are primitive chelicerates related t' ticks and mites, and they make their livin' as predators and scavengers.
		This one, Haliestes dasos, is th' oldest sea spider known.
	pharyngula.org /index/pirate/comments/1538 (914 words)

	Museum of Wellington City & Sea > Spider Bytes Web Design (Site not responding. Last check: 2007-09-06)
		The Spider Bytes team is made up of three Information Systems students from Victoria University of Wellington.
		The team was commissioned to develop the web site for the Museum as part of their Information Systems Project course in 1999.
		The name Spider Bytes was chosen by the team for the purposes of this project only.
	www.bondstore.co.nz /spiderbytes.htm (169 words)

	Basic information for Pycnogonum littorale (Sea spider) (Site not responding. Last check: 2007-09-06)
		It is the only species of the genus to be found around Britain.
		Pycnogonum littorale are found on the lower shore and sublittoral, underneath flat rocks and on seaweed and feeding on sea anemones.
		Pycnogonum littorale has a stout body up to 5 mm in long, although considerable variation in adult sizes may occur.
	www.marlin.ac.uk /demo/Pycnogonumlittorale.htm (294 words)

	Pulau Hantu - A celebration of marine life: Update: Sea spider
		Pulau Hantu - A celebration of marine life: Update: Sea spider
		Michelle Lee of the Tropical Marine Sciences Institute comments on Jimmy's sighting and photograph of a sea spider at Hantu:
		Check out British Sea Spiders by P.E. King (Book) and The Biology of Pycnogonida by F. Arnaud and RN Bamber (1987) in Advances in Marine Biology Vol 24, pg 1-96."
	habitatnews.nus.edu.sg /news/pulauhantu/2005/08/update-sea-spider.html (317 words)

	A Silurian sea spider : Nature (Site not responding. Last check: 2007-09-06)
		Pycnogonids (sea spiders) are marine arthropods numbering some 1,160 extant species.
		The fossils are preserved as calcitic void in-fills in carbonate concretions within a volcaniclastic horizon
		Here we describe a new pycnogonid from this deposit, which is the oldest adult sea spider by
	www.nature.com /doifinder/10.1038/nature02928 (270 words)

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