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Turret Spider nest?  Antrodiaetus? - Atypoides riversi

Turret Spider nest? Antrodiaetus? - Atypoides riversi
Big Basin Redwoods State Park, Santa Cruz County, California, USA
May 20, 2010
These are fairly common on the bare earth banks on the sides of trails.
I've never seen one of the spiders, that I am aware of.
These point pretty much vertical and the lips are rubbery, as is usually the whole 'turret'. No one has ever commented that it looked like silk inside. I'll have to measure one next time, the openings I believe are 1.5 CM the outside diameter are about 2 CM. The redwood needles should give some proper perspective.

Moved from Antrodiaetus.

Moved from ID Request.

I think. Compare with

Safe to call a turret spider, I think
See the comment under the second image

for explanation of why that one has been placed more conservatively.

turrett spider
looks like these
Antrodiaetus riversi
I still can't figuer out how to get the photos to move, just the http.

So these are still trap door spiders, even if there isn't a visible trapdoor?

This is a classic Antrodiaetu
This is a classic Antrodiaetus riversi turret. They are in the same family as other trapdoor spiders, only they've modified theirs into a standing turret. They are especially common in central Californias coastal forests.

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