- Source: Atypoides riversi
Atypoides riversi, known as turret spider, is a species of mygalomorph spider in the family Antrodiaetidae. It is a medium-sized spider native to Northern California that constructs a burrow with a turret made of soil, vegetation and silk. This spider's length is 13 to 18 millimetres (0.51 to 0.71 in) long, though females are larger than males.
