Dodatak:Popisi paučnjaka, Xi

Xin

, Xinella

Xio

, Xiombarg

Xip

, Xiphobelba

Xir

Xiruana Brescovit, 1997

1. Xiruana affinis (Mello-Leitão, 1922)
2. Xiruana ajuricaba Oliveira & Brescovit, 2015
3. Xiruana aymara Oliveira & Brescovit, 2015
4. Xiruana bifida Oliveira & Brescovit, 2015
5. Xiruana cocha Oliveira & Brescovit, 2015
6. Xiruana fiebrigi Oliveira & Brescovit, 2015
7. Xiruana gracilipes (Keyserling, 1891)
8. Xiruana guaia Oliveira & Brescovit, 2015
9. Xiruana hirsuta (Mello-Leitão, 1938)
10. Xiruana jaboticabal Oliveira & Brescovit, 2015
11. Xiruana lusitania Oliveira & Brescovit, 2015
12. Xiruana minacu Oliveira & Brescovit, 2015
13. Xiruana pocone Oliveira & Brescovit, 2015
14. Xiruana silarae Oliveira & Brescovit, 2015
15. Xiruana tapirape Oliveira & Brescovit, 2015
16. Xiruana tetraseta (Mello-Leitão, 1939)
17. Xiruana tribarrense Oliveira & Brescovit, 2015

Arachnida → Araneae → Anyphaenidae

Xiz

Xizangia Song, Zhu & Zhang, 2004

• Xizangia linzhiensis (Hu, 2001) tipična vrsta
• Xizangia rigaze Song, Zhu & Zhang, 2004

Arachnida → Araneae → Gnaphosidae