Paw clam

from The Collaborative International Dictionary of English v.0.48

Paw \Paw\ (p[add]), n. [OE. pawe, poue, OF. poe: cf. patte, LG.
   pote, D. poot, G. pfote.]
   1. The foot of a quadruped having claws, as the lion, dog,
      cat, etc.
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   2. The hand. [Jocose] --Dryden.
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   {Paw clam} (Zool.), the tridacna; -- so called because shaped
      like an animal's paw.
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