These catch in the seaweed, and soon the spider crab is decorated with bits of weed.
If you'd handed out a fiver there wouldn't have been enough meat on for a spider crab.
The spider crab holds him by the throat—he is there—at the back—under the rock—wound round by webs—Ah!
A parasite, Sacculina neglecta, sometimes drives root-like growths into the spider crab, causing slow castration.
The spider crab which your tutor has in his box comes from French Guiana.