Kimura-gumo

The word kumo or gumo in Japanese generically means the spider. The spider is near 400 million years old and it is the most primitive still living spider. It has spinning glands in the middle of the body. This is not very effective. It fixs its eggs on the surface with a cobweb, so they are well protected. The spider surrounds underground tunnels also with a cobweb. When it sets out on a hunting, it pulls the thread with itself. This helps it in the orientation.

Reference:

Tomo Kočar, Strah je okrogel in ima osem nog (The fear is round and it has eight legs), GEA 12 (2002) 7, pp 46 - 49.