| ?Brazilian wandering spiders |
| | Scientific classification | | | | Species | | P. bahiensis
P. boliviensis
P. fera
P. nigriventer
P. reidyi This image is copyrighted, and used with permission. ...
Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ...
Phyla Placozoa (trichoplax) Orthonectida (orthonectids) Rhombozoa (dicyemids) Subregnum Parazoa Porifera (sponges) Subregnum Eumetazoa Radiata (unranked) (radial symmetry) Ctenophora (comb jellies) Cnidaria (coral, jellyfish, anemones) Bilateria (unranked) (bilateral symmetry) Acoelomorpha (basal) Myxozoa (slime animals) Superphylum Deuterostomia (blastopore becomes anus) Chordata (vertebrates, etc. ...
Subphyla and Classes Subphylum Trilobitomorpha Trilobita - trilobites (extinct) Subphylum Chelicerata Arachnida - spiders,scorpions, etc. ...
Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. ...
For other uses, see Spider (disambiguation). ...
Genera Phoneutria The wandering spiders used to refer to the genus Phoneutria but now usually refers to the entire family Ctenidae. ...
In biology, a species is one of the basic units of biodiversity. ...
| The Brazilian wandering spider (Phoneutria spp.) is regarded by some as the most dangerous spider in the world. It is highly venomous and kills some 5 people across the world annually. [citation needed] It is named as such because it was first discovered in Brazil, though this genus is known to exist elsewhere in South and Central America. This spider is a member of the Ctenidae family of wandering spiders. Diversity 111 families, 40,000 species Suborders Mesothelae Mygalomorphae Araneomorphae See Table of Families Wikispecies has information related to: Spiders A South-American Argiope Spiders are predatory invertebrate animals with two body segments, eight legs, no chewing mouth parts and no wings. ...
Genera Phoneutria The wandering spiders used to refer to the genus Phoneutria but now usually refers to the entire family Ctenidae. ...
Phoneutria spp. is actually a genus with five known similar species whose members are highly venomous and not reluctant to attack people who appear threatening. However, recent studies possibly indicate (but not with any irrefutable proof) that these spiders only inject venom in approximately one-third of their bites and may only inject a small amount in another third. The problem with this theory are the inaccuracies involved with absolute definitive identification of a particular subspecies. Thus the effects of the bites from these spiders are hard to determine when based on sketchy information or inaccurate identification of a subspecies. It has been suggested that Snake poison be merged into this article or section. ...
However, the effects are reported to range from only a couple of painful pinpricks to a full-blown envenomation. In either case, one must assume that when bitten by a Phoneutria or any Ctenid that it is possibly life threatening and must seek out immediate emergency treatment. The Phoneutria fera and nigriventer are the two most commonly implicated as the most virulent of the Phoneutria spiders. The Phoneutria not only has a potent neurotoxin, but is reported to have one of the most excruciatingly painful envenomations of all spiders due to its high concentration of serotonin. Serotonin (5-hydroxytryptamine, or 5-HT) is a monoamine neurotransmitter synthesized in serotonergic neurons in the central nervous system and enterochromaffin cells in the gastrointestinal tract. ...
The Sydney funnel-web spider apparently injects venom in every bite and therefore in effect could be more dangerous — though either spider's venom can lead to a medical emergency. (For a comparison of the amounts and toxicities of problematical spider venoms, see Spiders having medically significant venom.) It should also be mentioned that due to the difficulty associated with identifying the offending spider, there are possibly many species of spiders that are potentially harmful but are not documented. For example, the common Wolf spider in the United States is considered largely harmless but there have been scattered reports of either adverse or allergic reactions to the bite of various species of the lycosid family (wolf spiders). A general rule of thumb is to give any medium to large spider plenty of room and respect. Binomial name Atrax robustus Pickard-Cambridge, 1877 The Sydney funnel-web spider, also called a funnel-web tarantula, (Atrax robustus) is regarded by some to be the most dangerous spider in the world. ...
Medicine is the branch of health science and the sector of public life concerned with maintaining or restoring human health through the study, diagnosis, treatment and possible prevention of disease and injury. ...
Spiders having medically significant venom exist in almost all parts of the world except those that are coldest. ...
Of the five species known, P. nigriventer and P. fera seem to be the ones to receive mention most frequently in mass-media publications. P.nigriventer species are responsible for most cases of venom intoxication in Brazil because this specie is commonly found in highly populated areas of Brazil, namely the South-eastern states: São Paulo, Minas Gerais, Rio de Janeiro and Espírito Santo. The P. fera is native to the northern portion of South America, especially the Brazilian Amazônia, Venezuela and French Guiana.
The Brazilian wandering spider is reputed to occasionally hide in clusters of bananas. As a result, any large spider appearing in a bunch of bananas should be treated with due care. Species Hybrid origin; see text Banana is the common name used for herbaceous plants in the genus Musa, which because of their size and structure, are often mistaken for trees. ...
This spider is called the wandering spider because it wanders the jungle floor, rather than residing in a lair or maintaining a web. This attribute is another reason it is considered so dangerous. In densely populated areas, Phoneutria species usually search for cover and dark places to hide during daytime, and this may occur inside houses, clothes, cars, boots, boxes and log piles; thus generating accidents when near people. Genera Phoneutria The wandering spiders used to refer to the genus Phoneutria but now usually refers to the entire family Ctenidae. ...
Despite its reputation as the world's deadliest spider, one study suggested that only 2.3% of bites (mainly in children) were serious enough to require antivenom.[1]
Interesting Fact The spider is called Brazilian because it was discovered and documented in Amazonia. The antidote for their poison was developed by Carlos Chagas, in Brazil.[citation needed]Diet spiderlings eat flightless fruit flies, and pinhead crickets and adults eat crickets, other large insects, small lizards, and pinkie mice. This spider is sometimes called the "Banana Spider" because it is often on bananas shipped to the U.S. The Brazilian wandering spider can grow up to 4-5 inches. Spiderlings can live in a clear plastic deli container with air holes and adults can live in a 5 to 10-gallon tank. A river in the Amazon rainforest The Amazon is a rainforest in South America. ...
Carlos Chagas Carlos Justiniano Ribeiro Chagas (born July 9, 1879, Oliveira, Minas Gerais, Brazil; died November 8, 1934, Rio de Janeiro), was a Brazilian physician. ...
In fiction The Fear from Metal Gear Solid 3: Snake Eater used the venom from the aforementioned spider to cover his crossbow bolts with it to fire at the player. (Additionally, it is not confirmed if it's the most potent poison in the game itself.) The Fear is a fictional character in the video game Metal Gear Solid 3: Snake Eater. ...
Metal Gear Solid 3: Snake Eater (commonly abbreviated MGS3) is a stealth-based game directed by Hideo Kojima, developed and published by Konami for the PlayStation 2. ...
Synthetic Brazilian Wandering Spider venom was also used as a murder weapon in an episode of CSI: NY. CSI: NY (working title CSI: New York) is an American police procedural television series which premiered on September 22, 2004. ...
Species Species The Brazilian wandering spider (Phoneutria spp. ...
Frederick Octavius Pickard-Cambridge (November 3, 1860 - ?) was an English arachnologist. ...
Binomial name Phoneutria bahiensis Sim & Brescovit, 2001 Phoneutria boliviensis (Pickard-Cambridge, 1897) Phoneutria fera Perty, 1833 Phoneutria nigriventer (Keyserling, 1891) Phoneutria reidyi (Pickard-Cambridge, 1897) The Brazilian wandering spider (Phoneutria sp. ...
1891 (MDCCCXCI) was a common year starting on Thursday (see link for calendar). ...
Frederick Octavius Pickard-Cambridge (November 3, 1860 - ?) was an English arachnologist. ...
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