CRUSTACEA. 



23 



AMPHIPODA. 



Orchestia Leach. 



longicornis Say. 

 Amphithoe Leach. 



dentata Say. 



not determined. 

 Gammarus Fab. 



miicronatus Say. 



fasciatus Say. 



Beach Fleas. 



Caprella Lam. 

 equilibra Say. 

 geometrica Say. 



IroTiEA Fab. 



caeca Say. 

 AsELLus Geof. 



communis Say. 



lineatus Say. 

 Lygia Fab. 



Gaudichaudii M. Ed. 

 Oniscus Lin. 



not determined. 

 Armadillo Branat. 



pilularis Say. 

 Sph^roma Lai. 



quadridentatum Say. 

 Nes^a Leach. 



caudata Say. 

 Nerocila Leach. 



variabilis L. Gibbes. 



Daphnla Mull. 

 angulata Say. 



Cythere Lat. 



bifasciata Say. 



Cyclops Mull. 



naviculus Say. 



LiEMODIPODA. 



ISOPHODA. 



. Wiiarf Louse. 



Pill Bugs. 



Fish Louse. 



CLADOCERA. 



OSTRAPODA. 



COPEPODA. 



Nymphum Fab. 



Carolinense Leach. 



ARANEIFORMIA. 



Llmulus Mull. 



polyphemus Lin. 



XIPHOSURA. 



. Kins Crab» 



