
Technically, we could end our response here, as the reader was only interested in what she found.

If this is true, we have a pretty good idea what our reader found: a hammerhead worm (sometimes spelled “hammer head worm”).

A couple of days ago we received a question from a reader in Northern California who found a six-inch “worm-like being with black horizontal stripes and a flat, fan-shaped head.” By “fan-shaped head,” we are assuming our reader means the worm’s head is, first, clearly distinct from the rest of its long, striped body and, two, somewhat flat and spread out, perhaps in half-circle shape.
