spider crab: any of numerous crabs with very long legs and small triangular bodies
crab: decapod having eyes on short stalks and a broad flattened carapace with a small abdomen folded under the thorax and pincers
herpes simplex: an infection caused by the herpes simplex virus; affects the skin and nervous system; produces small temporary (but sometimes painful) blisters on the skin and mucous membranes