Snail eating ground beetle

Description:

Large black, long-legged beetle that roams the forest floor; a predator. Not particularly nocturnal.

Habitat:

Mixed conifer forest; temperate coastal rainforest, very moist.

Notes:

Apparently they eat slugs, but my mother always called them carrion beetles. There seem to be a number of Carabidae beetles, and perhaps this is Blethisa oregonensa, but I'm not at all sure. It's a very familiar beetle in Oregon forests.