Order V.— ISOPODA, 226 



Oniscus, 228 



Bopvrus, 228 

 Serolis, 229 

 Cymothoa, 229 

 Ichthyophilus, 229 

 Nerocila, 229 

 Livoneca, 229 

 Canolira, 229 

 JEgSi, 230 

 Rocinela, 230 

 Conilira, 230 

 Synod us, 230 

 Nclocira, 230 

 Eurydice, 230 

 Limnoria, 23] 



Sphaeromides, 231 

 Zuzara, 231 

 Sphseroma, 232 

 Na-sa, 232 

 Campeco])ea, 232 

 Cilicsea, 232 

 Cymodocca, 232 

 Dynamene, 232 

 Anthura, 232 



Idoteides, 233 

 Idotea, 233 

 Stenosoma, 233 

 Arcturus, 233 



Asellota, 233 



Asellus, 233 

 Oniscoda, 234 

 Jaeia, 234 



Oniscides, 234 

 Tylos, 234 

 Ligia, 235 

 Philoscia, 235 

 Oniscus proper, 235 

 Porcellio, 236 

 Armadillo, 236 



SECTION II.— ENTOMOSTRACA. 

 Ordkr I.— BRANCHIOPODA. 238 



Monoculus, 239 

 liOphyropa, 239 

 Zoea, 240 

 Nebalia, 241 

 Condylura, 241 

 Cyclops, 242 

 CVthcre, 245 



