Pseudotyrannochthonius silvestrii

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Pseudotyrannochthonius silvestrii is a tiny arachnid known as a pseudoscorpion. It belongs to the family Pseudotyrannochthoniidae and the genus Pseudotyrannochthonius. This Chilean species was described in 1905 by Edvard Ellingsen, with Santiago, Chile as the type locality. It has also been called Chthonius silvestrii. The binomial name is Pseudotyrannochthonius silvestrii.