spider crab
noun
1- a crab with long thin legs and a compact pear-shaped body, which is camouflaged in some kinds by attached sponges and seaweed蜘蛛蟹。
1.1
- Majidae and other families, order Decapoda: Macropodia and other genera.蜘蛛蟹科和其他科, 十足目：巨足属和其他属。