Chelicerata
- Arachnids Arachnida
- Merostomata
- Adelophthalmidae
- Borchgrevinkium
- Bunodidae
- Carcinosomatidae
- Chasmataspididae
- Ciurcalimulus
- Clarkeipterus
- Corcoraniidae
- Dibasterium
- Diploaspididae
- Tri-spine horseshoe crab Tachypleus tridentatus
A coastal animal of East and Southeast Asia with a hard shell and long tail. It lays eggs on sandy shores, and young animals grow on tidal flats.
- Zora silvestris
A small spider with dark bands on the front part of its body, recorded from Europe, the Caucasus and Turkmenistan.
- Manuel's Cellar Spider Pholcus manueli
Recorded widely in Asia and the United States, females of this spider have slightly more closely spaced eye groups than males.
- Troglohyphantes pedemontanus
A small spider of caves in north-western Italy, known from three caves in Piemonte.