4. Brazilian wandering spider (Phoneutria)
LD50 value: 0.3
These are very infamous venomous spiders of Phoneutria genus. They are also sometimes referred to as banana spiders as they are often found in banana shipments. The Guinness Book of World Records proclaimed this spider to be the most venomous animal in 2007, but that is not quite the case as we can see. They are highly aggressive large spiders (being 4-5 inches), and that is why they are one of the most dangerous spiders also.
