INDEX. 



367 



Epistoma, 155 



Epithelium, 140, 177 



Eqtim emaelsiis, ooourring with fossil 



crayfishes, 316 

 Eryma, 341 



Evolution of crayfishes, 331 

 Excretion, organs of, 82 

 Exopodite, 145 

 Exoskeleton, 17 



chemical composition, 347 

 Eye, 118 



compound, 122 



development of, 225 

 Eye-stalk, 24, 173 



development of, 2] 4 



F. 



Family, 252 

 Fat-cells, 180 

 Fibre, muscular, 185 

 Fibril, muscular, 185 

 Figian Crayfishes, 306 

 Filament, muscular, 185 

 Filter of stomach, 58 

 Flagellum, 167 

 Food-yelk, 206 

 Foot-jaws, see maxillipedeB 

 Forceps, 22 

 Foregut, 61 



development of, 213, 222 

 Fossil crayfishes, 316 

 Foster, Dr. M., referred to, 110 

 France, consumption of crayfish 



in, 10 

 Function, 22 



G. 



GalawidcB; 315 

 Gammariia, 323 

 Ganglion, 103, 105 

 Ganglionic corpuscle, 87, 103 



Gastric mill, 53 

 Gastrolith, 29, 347 



chemical composition, 349 

 Gastrula, 211 

 Gay, quoted, 356 

 Genus, 249 



Geographical distribution, see Dis- 

 tribution 

 Geebb, M., quoted, 350 

 Germinal disc, 209 



layer, 206 



spot, 133 



vesicle, 133 

 Geestfbldt, Dr., quoted, 290 

 Gills, see Branchiae 

 GlEAED, quoted, 356 

 Goeup-Besaiibz, quoted, 353 

 Green-gland, 83, 353 



development of, 224 

 Geobben, Dr., quoted, 354 

 Growth of crayfish, 31, 349 

 Guanin, 82, 353 

 Gullet, see Oesophagus 

 GtJNTHBE, Dr., quoted, 315 



Hagen, Dr., quoted, 305, 312 

 SaplocliitonidcB, 315 

 Haevet, quoted, 6 

 Head, see Cephalon 

 Hearing, organ of, 116 

 Heart, 27, 71 



development of, 224 

 Hbllbe, Dr., quoted, 298, 330 

 Hepatic duct, see Bile duct 

 Hind gut, 61 



development of, 214, 223 

 Histology, 175 

 Hutriohdella, 356 

 Homaridce, 263 



