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| | Howstuffworks "How Spiders Work" |
 | | In the mygalomorph spider suborder, which includes the various tarantulas, the chelicerae are positioned so that the fangs swing forward into the prey, like an axe. | | | For the mygalomorph system to work effectively, the prey has to be on ground or another solid surface -- the spider has to sandwich the prey between something else and the fangs. | | | The araneomorph system works whether or not the prey is on solid ground -- the chelicerae simply push against each other. |
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http://science.howstuffworks.com/spider6.htm
(730 words)
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| | Spiders |
| | Chelicerae are a pair of appendages that the spider uses to seize and kill its prey. | | | Spiders also crush thier prey with their chelicerae. | | | Each chelicera ends in a hard, hollow, pointed claw, and these claws are the spider's fangs. |
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http://www.greensmiths.com/spiders.htm
(2088 words)
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| | The ArachnidsSystematics |
| | The same kind of behaviour is shown by the Pseudoscorpiones, a widely quoted account of whose ways has been given by Kew, with the addition of some degree of display by the male. | | | The male Solipugid turns the cataleptic female over and opens the genital orifice with his chelicerae. | | | One pair only of these appendages is pre-oral, the chelicerae. |
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http://members.tripod.com/Spinnenman/ArachnEigenschNed.htm
(5300 words)
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| | Anoplodactylus Laboratory Exercise |
| | It is superficially unsegmented but probably is formed of four fused segments for it bears four pairs of appendages (chelicerae, pedipalps, ovigers, and a pair of walking legs). | | | The cephalon is the anterior end of the body. | | | The first pair of appendages is a pair of pincer-like chelicerae and the second pair is the sensory pedipalps. |
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http://www.lander.edu/rsfox/310anoplodLab.html
(1771 words)
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| | And Along Came a Spider
by Ronald L. Shimek, Ph.D. - Reefkeeping.com |
| | The long, often leg-like, pedipalps are considered to be sensory, but in some chelicerates they are quite large and they seem to function as aids in locomotion. | | | Because of this rather long history of separation, a jargon terminology specific to the group has been applied to them. | | | In fact, the structure of the chelicerae is so different and distinctive that it is what gives the group its name. |
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http://www.reefkeeping.com/issues/2003-01/rs/index.php
(2335 words)
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| | Spinnen Terminologie - Spiders Terminology |
| | Rake-like structure at extremity of chelicerae in Mygalomorpha, often reduced to a few strong spines; use for burrowing | | | A semi-membranous structure in the male palp which supports and guides the embolus in insemination | | | Said of chelicerae in which the fang closes down on a tooth-like process |
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http://www.geocities.com/CapeCanaveral/Launchpad/2073/SpinTerminEng.html
(1460 words)
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| | temp |
| | The chelicerae and pedipalps are pincer-like, leg-like or needle like, depending on their function. | | | The first part is the prosoma, bearing two pairs of appendages (the chelicerae and the pedipalps) which are often pincer-like, and four pairs of legs; the second part is an abdomen which lacks limbs. | | | Their chelicerae are small with pincers, and their pedipalps are leg-like. |
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http://www.abdn.ac.uk/~nhi708/classify/animalia/chelicerata/arachnida
(478 words)
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| | Spiders: Our Eight Legged Friends |
| | Spiders use these chelicerae to maneuver prey to their mouths. | | | They have four pairs (eight) of walking legs, and they also have a pair of graspers or chelicerae (pronounced "kil-lis-er-ree") on their cephalothorax. |
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http://www.suite101.com/article.cfm/4003/23052
(446 words)
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| | Solifugae - Wikipedia, the free encyclopedia |
| | Reproduction can involve direct or indirect sperm transfer; when indirect, the male emits a spermatophore on the ground and then inserts it with his chelicerae in the female's genital pore. | | | The most distinctive feature of solifugae is their large chelicerae. | | | There is no chance of death directly caused by the bite, but, due to the strong muscles of their chelicerae, they can produce a proportionately large, ragged wound which is prone to infection. |
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http://en.wikipedia.org/wiki/Camel_spider
(538 words)
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| | NA Jumping Spiders: Tutelina |
| | Chelicerae with a very stout fang and a keel along the medial margin. | | | For more information and links to the species, go to Tutelina in the Tree of Life. |
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http://tolweb.org/accessory/NA_Jumping_Spiders:_Tutelina?acc_id=2148
(179 words)
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| | Windscorpion: pictures, information, classification and more |
| | Alternatively, he may deposit sperm onto the ground in a spermatophore, or packet, and then move it to her genital orifice using his chelicerae. | | | He uses his chelicerae to open her genital orifice and deposits his sperm inside her. | | | Their unusually large chelicerae, or jaws, point forward and are used to crush and shred the prey. |
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http://www.everythingabout.net/articles/biology/animals/arthropods/arachnids/windscorpion
(457 words)
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| | [No title] |
| | -1 -1 -1 -1ÿÿÿÿ ( B 2 cThe chelicerae of all "spiders" point downward in order to stab their prey. | | | ( ÿÿÿÿÿÿÿÿÿÿÿÿ cephalothorax v 2 IThe chelicerae of all spiders point downward in order to stab their prey. placeholder True False 0 1 01 points awarded for selecting False | | | -1 -1 -1 -1 -1 -1 -1 -1ÿÿÿÿ ( ´ 2 LIn what part of the body of most true spiders are the poison glands located? placeholder 1 0 8They are found in the chelicerae only in the tarantulas. ,1 point awarded for cephalothorax |
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http://www.entm.purdue.edu/Entomology/courses/110/110Quiz2.tp3
(3111 words)
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| | TICK INFORMATION |
| | Once there, it uses its chelicerae to slice a hole in the skin - you feel no pain when a tick bites you. | | | The tick finds its way to a suitable place on the skin. | | | Tick head: a tick's mouthparts, which consist of the hypostome, chelicerae and palps |
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http://www.tickedoff.com/TICKinfo.htm
(408 words)
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| | Solifugae Photos ("Wind Scorpions" of "Sun Spiders") |
| | Just posterior to the chelicerae are the pedipalps which are used to help in the capture of prey. | | | Although they are homologous to the pedipalps with enlarged chela (pincers) of true scorpions, the chela on solifugid pedipalps are much less conspicuous and pedipalps look much like walking legs. | | | The chelicerae of these animals are huge (the large structures beneath the eyes in the photo below) and by all accounts solifugids are quick, active predators. |
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http://www.americanarachnology.org/gallery_solfugae.html
(255 words)
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| | Tailless Whipscorpions & Sun Spiders |
| | The spined pedipalps impale and crush the prey and then transfer it to the chelicerae (jaws). | | | Some “dancing” and stroking ensues, with the male finally flipping the female onto her back, and with his chelicerae, inserting into her gonopore a sperm droplet. | | | Tailless whip-scorpions can only pinch their prey; they lack venom glands. |
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http://www.desertmuseum.org/books/nhsd_whipscorpions.html
(368 words)
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| | Morphology of the Eurypterida |
| | The first pair are the chelicerae, which are homologous to the fangs of spiders. | | | In most sea scorpions, the chelicerae are rather small; only the Pterygotina have chelicerae as large as those shown above. | | | The chelicerae are not homologous to the pincers of scorpions, despite their resemblance in the diagram above; scorpion pincers are the second appendages, not the first. |
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http://www.ucmp.berkeley.edu/arthropoda/chelicerata/eurypteridmm.html
(515 words)
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| | Our Methods |
| | Anesthetized spiders are milked by inserting the fangs into soft vinyl or silicon rubber tubing, while a suctioned syringe needle or pipette suctions digestive fluids from the mouth. | | | This is a simple procedure for most spiders since the glands are exposed after pulling the chelicerae. | | | The glands of sac spiders, mygalomorphs and some others lie entirely within the chelicerae and have to dissected out. |
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http://spiderpharm.com/venoms/techniqu.htm
(1913 words)
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| | [No title] |
| | The feet are characterised by stiff hairs or spines which help them run rapidly over soft sand. | | | Sexually mature male’s have backward pointing hook like structures called flagella on their chelicerae which are used in courtship. | | | Organs of taste, smell and hearing are situated on the feet and chelicerae. |
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http://www.sysetc.com/tw/camel_spider_info.txt
(815 words)
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| | Tarantulas.com |
| | Getting the hang of sexing immatures this way may take a lot of experience raising larger immatures, but it can work. | | | The first method (and the least reliable) is determining the sex by the relative size and shape of the chelicerae. | | | The remainder of this article will focus on immature tarantulas. |
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http://www.tarantulas.com/howtosex.asp
(789 words)
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| | Hoseshoe Crabs |
| | However, they mostly use these legs for burrowing near the sandy surface in search of prey such as worms and mollusks. | | | They are similar to the chelicerae that spiders have. | | | These chelicerae are small legs that have been modified for biting or piercing prey, and for maneuvering the food items to the crab's mouth. |
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http://www.suite101.com/article.cfm/paleontology/25796
(493 words)
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| | Irreal (Re)views 1: Defining Irrealism: Scientific Development and Allegorical Possibility by Dean Swinford |
| | While the subjectivity of classification has curtailed recent literary investigation into genre, to the extent that, in some quarters, genre studies are regarded as disreputable, scientific taxonomy continues. | | | While scientists may be more assured about the validity of classification, literary theorists are perhaps more adept at recognizing new species upon their initial mutations, at the moment they distinguish themselves, whether through extra limbs or multicolored markings or imposing chelicerae, from whatever else used to wriggle through the decaying leaves lining the forest floor. | | | The specimens I have collected are connected by Irrealism, a term which I would like to define as a peculiar mode of postmodern allegory. |
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http://home.sprynet.com/~awhit/review1a.htm
(4404 words)
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| | [No title] |
| | Do you see any evidence that a spider’s body is segmented? | | | The chelicerae have been modified into __________________ ; they have __________ pairs of walking legs. | | | Question 2: What external features make scorpions appear so menacing? |
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http://www.dmacc.cc.ia.us/instructors/tmbergin/biol142labex38.doc
(526 words)
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| | Chelicerae - Wikipedia, the free encyclopedia |
| | Chelicerae are also found in related creatures such as the scorpions. | | | The chelicerae of spiders are their two-component mouth parts consisting of a base segment that articulates with the cephalothorax and a fang portion that articulates with the base segment. | | | This drawing shows the chelicerae in black, the surface of the cephalothorax in brown, the spiders legs in reddish brown, and the poison glands and surrounding muscle tissue (used to squeeze out the venom) in green.The fang portion of the right chelicerae can be seen projecting into the space between the two chelicerae. |
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http://en.wikipedia.org/wiki/Chelicerae
(209 words)
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| | MSN Encarta - Search View - Spider (arthropod) |
| | For the most part, however, tarantulas do not attack unless provoked, and their venom is not harmful to humans, although their strong chelicerae can cause painful wounds. | | | They have chelicerae with opposing fangs that work together like a pair of pliers. | | | These spiders are characterized by the presence of two book lungs and a tracheal tube breathing system. |
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http://encarta.msn.com/text_761566464__1/Spider_(arthropod).html
(5774 words)
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| | Lecture3.html |
| | First pair of appendages are chelicerae (pincer-like appendages), while the second pair are leg-like sensory or sometimes prehensile structures called pedipalps. | | | Authorities are still uncertain to which extant group trilobites are most closely related=4,000 extinct "species." | | | Continuous dorsal carapace present; a pair of compound and a pair of simple eyes present; abdomen with gills and a posterior pointed telson at tip. |
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http://www.eeb.uconn.edu/courses/Eeb252/eeb252su00/3eeb.html
(692 words)
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| | Chelonethida (Pseudoscorpionida) |
| | All are predacious, feeding on the body juices of other arthropods and small invertebrates, after immobilizing the prey with the palpal chelae and chelicerae. | | | Quite a few pseudoscorpions engage in the behavior called phoresy in which a pseudoscorpion grasps a larger arthropod, usually an insect, by a leg and is carried from place to place. | | | The chelicera bears several setae some of which are grouped together into a flagellum; two serrulae along the inner margin of the fingers; and usually a galea, or spinneret, on the movable finger. |
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http://antitruster50.tripod.com
(786 words)
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| | DMNS-Colorado Spider Survey |
| | Boss may be rudimentary and difficult to see. | | | Stridulating area on the lateral surface of a chelicera of a linyphiid spider. | | | Lateral face of the chelicerae with a stridulating area used, presumably, in courtship (Fig. |
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http://www.dmns.org/main/minisites/spiders/idkey8.html
(91 words)
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| | Spider Key |
| | Boss conspicuously present on chelicerae in most, though rudimentary in some. | | | Chelicerae diaxial, i.e., projecting downward or in some cases obliquely downward and forward and with the fangs so articulated as to be movable in a more or less transverse plane. | | | Chelicerae paraxial, i.e., projecting forward horizontally, and with the fang so articulated as to be movable in a plane more or less parallel to the median plane of the body. |
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http://www.ento.vt.edu/Fruitfiles/spiders.html
(850 words)
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| | ARC-PPRI Biosystematic Divisions |
| | They use their chelicerae to loosen the substrate and by using their whole front body like a bulldozer they are able to move large amounts of soil around. | | | They are also able to produce a kind of twittering sound with their chelicerae when spines are rubbed together. | | | It is said that solifugids have the most formidable pair of chelicerae in the animal world. |
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http://www.arc.agric.za/institutes/ppri/main/divisions/biosysdiv/solifugae/commonnames.htm
(1107 words)
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| | Spider chelicerae |
| | A spider's body is divided into two parts: | | | Spiders have mouthparts known as "chelicerae" on which you will find their fangs. |
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http://www.ces.ncsu.edu/depts/ent/notes/Urban/chelicerae.htm
(21 words)
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| | Defining characters of Chelicerata |
| | The chelicerae are often modified into claw-like structures. | | | Depending on the group, the chelicerae and pedipalps may be modified for feeding, sensing, defence, reproduction or locomotion. | | | 'head end') is distinctive, and forms the chelicerae (for which the group is named). |
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http://palaeo.gly.bris.ac.uk/Palaeofiles/Fossilgroups/Chelicerata/characters.html
(303 words)
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| | The Find-a-spider Guide - Spider Info |
| | Cephalothorax: The first of the two main parts of the body of a spider. | | | This part has the chelicerae with fangs attached, the pair of palps and the four pairs of legs attached to it. | | | Chelicerae: A pair of short appendages at the front end of a spider. |
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http://www.usq.edu.au/spider/info/glossary.htm
(854 words)
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| | ecowatch_araneida |
| | this group of spiders have 1 pair of book-lungs on the underside of the abdomen and their chelicerae work from side-to-side. | | | 1 pair of sensory palps (often much larger in males) between the first pair of legs and the chelicerae, used for sperm transfer during the mating season, prey manipulation during feeding and detection of smells and vibrations | | | this group of spiders have 2 pairs of book-lungs on the underside of the abdomen and have chelicerae which work in an up and down fashion. |
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http://www.ento.csiro.au/Ecowatch/Arachnida/araneida.htm
(719 words)
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| | Daddy long-legs -- Wisconsin Natural Resources magazine |
| | The body supports six pairs of appendages, the chelicerae, pedipalps and four pairs of legs. | | | The daddy long-legs' most impressive feature is its four pairs of long slender legs, which may be up to 30 times as long as its body. | | | The tiny black dot on top of its body is a raised knob or tubercle with two minute black eyes peering out. |
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http://www.wnrmag.com/stories/2000/jun00/daddy.htm
(608 words)
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| | DMNS-Colorado Spider Survey |
| | Parallel fangs and rastellum on the chelicerae of mygalomorph spiders. | | | Two pairs of lungs evident as slit-like structures on the ventral surface of the abdomen. | | | Fangs, or chelicerae, move more or less parallel to one another (Fig. |
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http://www.dmns.org/main/minisites/spiders/idkey1.html
(446 words)
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| | More on Morphology of the Cheliceramorpha |
| | The second pair of appendages, known as pedipalps, are also modified in various ways. | | | The first pair of appendages of a typical chelicerate are formed into claws, or chelicerae. | | | In scorpions, for instance, the pedipalps form the large pair of claws, while the true chelicerae are inconspicuous structures near the mouth. |
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http://www.ucmp.berkeley.edu/arthropoda/chelicerata/cheliceramm.html
(232 words)
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| | Mygalomorphae - encyclopedia article about Mygalomorphae. |
| | glands that lie entirely within their chelicerae The chelicerae of spiders are their two-component mouth parts consisting of a base segment that articulates with the cephalothorax and a fang portion that articulates with the base segment. | | | They are rarely seen, burrowing spiders from Southeast Asia, China, and Japan characterized by their downward pointing, daggerlike chelicerae, and by having a segmented series of plates on the upper surface of their abdomens. | | | They are characterized by not having a rastellum (closely spaced parallel ridges) on each of their chelicerae. |
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http://encyclopedia.thefreedictionary.com/Mygalomorphae
(1382 words)
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| | AllRefer.com - spider (Zoology: Invertebrates) - Encyclopedia |
| | On the underside of the head (the cephalic part of the cephalothorax) are two pairs of appendages, the anterior pair called chelicerae and the second pair pedipalps, with which the spider captures and paralyzes its prey, injecting into it venom produced in the poison glands. | | | The spider then liquefies the tissues of the prey with a digestive fluid and sucks this broth into its stomach where it may be stored in a digestive gland. |
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http://reference.allrefer.com/encyclopedia/S/spider.html
(533 words)
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| | Urban Entomology [Ebeling Chap. 9 part 3] Pests Attacking Mand and His Pets |
| | At the extremity of each chelicera is a pair of digits, used to lacerate the skin of the host (figure 305). | | | This consists of a basal portion, the basis capituli, to which the hypostome, the chelicerae, and the 4-segmented palps are attached. | | | The hypostome is not only a piercing organ, but also possesses rows of backward-projecting spines that anchor the tick to the skin of its host. |
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http://www.entomology.ucr.edu/ebeling/ebel9-3.html
(19692 words)
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| | Urban IPM: Scorpions and Scorpion-Like: Solpugids |
| | No spermatophore is produced by the male; instead a sperm droplet is transferred from the substrate to the female gonopore (genital opening) by means of the male's chelicerae. | | | Apparently authentic cases of aftereffects resulting from a solpugid bite have been recorded, but these symptoms were probably caused by bacterial infection of the wound. | | | Envenomation: Solpugids are commonly considered to be venomous, but poison glands have not been found to be associated with the chelicerae. |
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http://ag.arizona.edu/urbanipm/scorpions/solpugids.html
(472 words)
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| | Common Garden Spiders |
| | Digestive enzymes are regurgitated to liquefy prey externally. | | | Unlike the spiders in Araneidae family which first wrap their prey in silk after capture and then bites it, spiders in family Tetragnathidae bite first and then wrap. | | | Species in this family are elongate spiders with long chelicerae and legs. |
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http://www.colostate.edu/Depts/CoopExt/4DMG/Pests/spiders.htm
(1226 words)
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| | Venom Preps |
| | The mouth is suctioned with a pipette attached to a vacuum trap and a split, bipolar tweezers is used to stimulate the base of each paturon. | | | It is also a good idea to check your dilution procedure by bioassay. | | | Numerous modifications of the procedures have been improvised as required for studies with special requirements. |
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http://spiderpharm.com/venoms/venompreps.htm
(635 words)
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| | Palaeos Invertebrates : Arthropoda : Eurypterida : Pterygotina |
| | In most eurypterids, the chelicerae are rather small; only in the Pterygotina do they grow into large pincer-type grasping organs as those shown here. | | | The exoskeleton ornamented with distinct semilunate scales; and the broad flattened telson, which may have served a stabilizing function when the animal swam. | | | The Pterygotids are among the most spectacular of the eurypterids, in the more advanced forms equipped with large chelicerae or "pincers". |
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http://www.palaeos.com/Invertebrates/Arthropods/Eurypterida/Pterygotina.html
(595 words)
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| | salticidaephiddipuspage |
| | Notice hairy body and green chelicerae are prominent. | | | Notice the very hairy body and dark black base color. | | | Also their chelicerae are iridescent, notice in this spider the cheliceae are green. |
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http://www.bio.brandeis.edu/fieldbio/heidi/salticidaephiddipuspage.html
(95 words)
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| | Frequently Asked Questions |
| | Venom to kill or paralyze prey from hole in fangs (chelicerae), external digestion with digestive enzymes acting outside of body to liquify prey. | | | The closest relative of the arachnids are horseshoe crabs - count their legs, body parts, and look at their chelicerae. | | | Do not eat plants but other living animals. |
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http://www.entomology.cornell.edu/Faculty_Staff/Rayor/Spiders/FAQ.html
(141 words)
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| | [No title] |
| | They have 6 pairs of appendages (1 pair of pedipalps, 1 pair of mouthparts, 4 pairs of legs). | | | Virtually all spiders are predatory carnivores The chelicerae (1st pair of appendages) have modifications called fangs. | | | Feed on plants and decaying material PHYLUM ARTHROPODA Sub-Phylum: Chelicerata Chelicerae Class: Arachnida ARACHNIDS Spiders, mites, ticks, scorpions, and others do NOT possess antennae. |
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http://www.umass.edu/ent/faculty_staff/hollingsworth/documents/Arthropods_000.doc
(251 words)
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| | Arthropod.HTML |
| | -six pairs of appendages including a pair of chelicerae and a pair of pedipalps | | | -claws and fangs which are modified pedipalps and chelicerae |
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http://www.sjdccd.cc.ca.us/emp/aassadi-rad/Arthropod.html
(426 words)
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| | regal jumping spider - Phidippus regius C.L. Koch |
| | The chelicerae are also believed to be of use in recognition between the sexes, as no other jumping spiders within the geographic range of the genus Phidippus have iridescent chelicerae. | | | The paired chelicerae are enlarged and iridescent (green-blue-violet); each has a subdistal tubercle on its anterior face. | | | Although jumping spiders do not make webs to capture prey, they do use silk. |
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http://creatures.ifas.ufl.edu/misc/regal_jumping_spider.htm
(1194 words)
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