INDEX. 



367 



Epistoma, 155 



Epithelium, 140, 177 



Equus excelsns, occurring 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, 21 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 maxilli pedes 

 Forceps, 22 

 Foregut, 61 



development of, 213, 222 

 Fossil crayfishes, 316 

 FosTEB, Dr. M., referred to, 110 

 France, consumption of crayfish 



in, 10 

 Function, 22 



G. 



(ralaxidcB, 315 

 Gammariig, 323 

 Ganglion, 103, 105 

 Garglionic corpuscle, 87, 103 



Gastric mill, 53 

 Gastrolith, 29, 347 



chemical composition, 349 

 Gastrula, 211 

 Gay, quoted, 356 

 Genus, 249 



Geographical distribution, see Dis- 

 tribution 

 Gerbe, M., quoted, 350 

 Germinal disc, 209 



layer, 206 



spot, 133 



vesicle, 133 

 Gerstfeldt, Dr., quoted, 200 

 Gills, see Branchiae 

 GiEARD, quoted, 356 

 Gorup-Besanez, quoted, 353 

 Green-gland, 83, 353 



development of, 224 

 Geobben, Dr., quoted, 354 

 Growth of crayfish, 31, 349 

 Guanin, 82, 358 

 Gullet, see CEsophagus 

 GuNTHER, Dr., quoted, 315 



H. 



Hagen, Dr., quoted, 305, 312 

 Haplochitonidce , 315 

 Harvey, quoted, 5 

 Head, see Cephalon 

 Hearing, organ of, 116 

 Heai-t, 27, 71 



development of, 224 

 Heller, Dr., quoted, 298, 330 

 Hepatic duct, see Bile duct 

 Hind gut, 61 



development of, 214, 223 

 Histology, 175 

 Histriohdella, 356 

 Jlomaridce, 263 



