22 



CRUSTACEA. 



Sesarma Say. 



cinerea Bosc. ) 

 'reticulata Say. ^ 

 Plagtjsia Laf. 



squamosa Herhst. 



Calappa Fah. 



marmorata Fah. 

 Hepatus Lat. 



decorus Herbst. 

 GuAiA M. Ed. 



punctata Brown. 



Albunea Fah. 



symnista Fab. 

 HiPPA Fah. 



emerita Lin. 

 Manolepis Say. 



spinitarsus Say. 

 Pagurus Fah. 



villatus Bosc. ^ 



hollicaris Say. > 



longi carpus Say. ) 

 Porcellana Lam. 



pilosa M. Ed. 



macrocheles L. Gibbes. 



ocellata L. Gibhes. 



Callianassa Leach. 



major Say. 

 Gebia Leach. 



affinis Say. 

 Astacus Fab. 



Bartoni Fab. ) 



Blandingii /iforZ. \ 

 Alpheus Fah. 



heterochelis Say. 

 PONTONIA Lat. 



occidentalis L. Gibbes. 

 HiPPOLYTE Leach. 



Caroliniana Gibbes. 

 Paljemon Fab. 



vulgaris Say. 

 Peneus Fah. 



sctiferus Lin. i 



caramote Rond. \ 



Square-back Fiddlers. 



OXYSTOMA. 



. Spotted Crab, 



ANOMOURA. 



Soldier Crabs, or Hermit Crabs. 



MACROURA. 



Cray-fish. 



Hard-backs. 



Shrimps. 



Squilla Fah. 



scabricauda Lat. 

 empusa Say. 

 neglecta L. Gibbes. 

 diibia M. Ed. 



STOMAPODA. 



