FIGURE 8 in Neoichnology of the burrowing spiders Gorgyrella inermis (Mygalomorphae: Idiopidae) and Hogna lenta(Araneomorphae: Lycosidae)

FIGURE 8. Surface features produced by Gorgyrella inermis. 1, Sediment forcefully removed from the burrow by the spider throwing packets with its chelicerae. 2, Trapdoor held open at a burrow entrance. 3, A silk mat produced by a spider that did not construct a burrow. 4, A cocoon built by a spider that did not burrow. The cocoon did not extend into the sediment.