Flying crab A catty has 2-3 or so, it is also estimated at about 130. Specifically also depends on the species you choose. The shrimp crawler I don't know where you are, not a place where the price is slightly different. The current market price in Tangshan is 30-35 yuan 1 city catty (of course, is superior, dead, small and much cheaper, more than 20 yuan 1 city catty although live, but the seller raised a long time, whitening, not fat)