It’s about 2-3mm in length. Central European location.
this post was submitted on 27 May 2026
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What is this thing?
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It's the gray or long-tailed silverfish: https://en.wikipedia.org/wiki/Ctenolepisma_longicaudatum
They can be somewhat of a pest if they are in your house (unlike regular silverfish, who are relatively benign) and if you have books, or other papermaterial stored.