Fig. 5. 



Fig. - 



Fig. 1. Tli(^ FiddUn- Crab, (h'lttsimiin jiiKjilatur, Latri-'ille; male, .slightly eulargod. 



Fro. "i. TliLi Oy.stcT Crab, I'hiiiutliiri-s oslreum, Say: male, enlarged four diameters. 



Fn;. X The Mtid Crab, VanoiKus deprcssus, Smith; male, natural size. 



Fni.s. 4, 5. The Spider Crabs. Fig. 4, IJhinia emarginafa, Leach; male. Fig. 5, J.ihinia ditbia, Edwards; male. 



three-fourths natural size of small specimens. 

 Fig. fi. The Sand Bug or Bait Bug, Hqipa talpoida, Say ; enlarged about two diameters. 

 Fig. 7. The Hermit Crab, Euimijurus beniliardits, Brandt; about two-thirds natural size. 

 Drawings by J. U. Emertou. 



Both 



