There appears to be a sizable population of these cohabiting with Cornu aspersum and Helminthoglypta phlyctaena (and possibly Oxychilus darparnaudi). Roth & Sadeghian have no reports of this species from Santa Barbara County, but SBMNH has a lot from UCSB. I have also found these at La Playa Stadium. It had been raining for about 8 hours. (The last photo has some individuals that are almost impossible to make out: right end of the rock; center, just to the right of the stick thing; center, on the live oak leaf on the edge of the sidewalk; top right, in the crack between the rocks; the largest snail in the upper left is a juvenile H. phlyctaena.)