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Phoneutria nigriventer is a species of medically-significant spider in the family Ctenidae, found in the Southern Cone of South America (Brazil, Uruguay, Paraguay, and Argentina). [1] Along with other members of the genus, they are often referred to as Brazilian wandering spiders. [2]
Phoneutria nigriventer, the Brazilian wandering spider (a ctenid spider) is a large brown spider similar to North American wolf spiders in appearance, although somewhat larger. It has a highly toxic venom and is regarded (along with the Australian funnel-web spiders ) as among the most dangerous spiders in the world. [ 6 ]
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 January 2025. Genus of spiders Phoneutria Phoneutria nigriventer Scientific classification Domain: Eukaryota Kingdom: Animalia Phylum: Arthropoda Subphylum: Chelicerata Class: Arachnida Order: Araneae Infraorder: Araneomorphae Family: Ctenidae Genus: Phoneutria Perty, 1833 Type species Phoneutria fera ...
The threads have a yellowish hue to them,” according to Insect Identification, a notable insect identification website. ... Brazilian wandering spider and the Hawaiian gardening spider.
NEUROTOXINS can help the understanding of mechanisms involved in neurotransmission. We here report that two neurotoxin isoforms, Tx3-3 and Tx3-4 obtained from the venom of the spider Phoneutria nigriventer inhibited the 45 Ca 2+ influx in rat cortical synaptosomes induced by the scorpion venom tityustoxin. The IC50 for Tx3-3 and Tx3-4 were 0.32 ...
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The culprit was a stowaway Brazilian Wandering Spider, an 11cm black and red arachnid with a bite that causes convulsions, hypothermia, death and—if you’re of the male persuasion—a ...
Wandering spiders (Ctenidae) are a family of spiders that includes the Brazilian wandering spiders. These spiders have a distinctive longitudinal groove on the top-rear of their oval carapace similar to those of the Amaurobiidae. [1] They are highly defensive [2] and venomous nocturnal hunters.