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Wiki information Gradun:

Gradungulidae
Organism Classification

The Gradungulidae are a small spider family of Australia and New Zealand with 16 species in seven genera. They are medium to large three-clawed haplogyne spiders with two pairs of book-lungs. The genus Gradungula lives in forest litter. Progradungula...

Gradungula
Organism Classification

Gradungula sorenseni, the only species in the spider genus Gradungula, occurs in New Zealand.