Shoulderband snail. Found on dune slope. I have seen others over the years.
In top of brush in this photo . Chirping . We're two of these
On hawk hill west side
It was about 20 cm long.
Dead on the road, but didn't look particularly flat/squashed.
Endangered species (re)introduction. No historic records from Marin County, but historic range includes Mendocino County down to San Bernadino. Historic occurrence closest to this location is Presidio near Fort Point.
Need sp. name