Spider

A South African spider similar to the Redback spider of Australia and the Black Widow spider of America. Belongs to the species Latrodectus indistinctus.... Dictionary of Tropical Medicine

Spider found mostly in Australia and is similar to the Black Widow of America and the Button spider of South Africa. Belongs to the species Latrodectus hasseltii.... Dictionary of Tropical Medicine

Nearly all spiders produce venom, which they use to kill their prey.

However, only a few species, such as the black widow in North America, are harmful to humans.

Antivenoms are available for many dangerous spider bites.... BMA Medical Dictionary

A red, raised pinheadsized dot, from which small blood vessels radiate, due to a dilated minor artery and its connecting capillaries. Small numbers of spider naevi are common in children and pregnant women, but in larger numbers, they may indicate liver disease. (See also telangiectasia.)... BMA Medical Dictionary

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