POST-FLEIOCENE FOSSILS. 



Order, DECOPODA. 



See Fauna of South Carolina, appended to Tuoraey's Geology of that State, by Prof. 

 L. R. Gibbes, p. xv. 



C A L A P P A M A R M R A T A .— F a b . 



Plate II. Fig. 6. 



Vidgo, Box or Conch-Crab. 



We have only a fragment (the movable finger) of the right claw of this beautiful species 

 of Crab, from the Post-Pleiocene marls, but it is so characteristic as to dissipate all doubt 

 of its existence during that geological period. Calappa marmorata is living on the coast 

 of South-Carolina, in deep water, but is rarely captured. 



PSEUDOCARCINUS MERCEN ARIA. — Say. 

 Plate II.' Fig. 7. 



Vulgo, Stone Crab. 



Our figure is taken from a fragment of the lower finger of left claw; the punctured 

 groove along the side is quite characteristic. This also is a common species in the waters 

 of our bays and harbors. 



GUIA PUNCTATA. — Brown- 

 Plate II. Fig. 8. 



Vulgo, Little-spotted Crab. 



The third joint of the right claw is all of this species yet found in the Post-Pleiocene. 

 It is a common crab upon the coast. 



