They can reach 25–35 mm [0.98-1.38 inches] of carapace length, which is the structure that is most commonly used for measuring the size of spiders because it is rigid. In contrast, the three ...
Opopaea-type spider (Oonopidae) spider carapace; E, F. Cryptamorpha desjardinsii (Silvanidae) (meso- and metaventrites (E) and prothorax (F). Scale bars all 0.25 mm. Disclaimer: AAAS and EurekAlert!