36 



INDEX. 



Crayfishes, Figian, 306, 313 



Japanese, 304, 313 



Mascarene, 308, 313 



northern and southern, com- 

 pared, 252 



Novozelanian, 306, 313 



southern, 249 



Tasmanian, 306 



Western North American, 306, 



313 



Crustacea, 271, 278 

 Crystalline cones, 121 

 Cuticle, 33, 60, 175, 192 

 Cyclas, 35G 



D. 



Dactylopodite, 165 



Daphiiia, asexual reproduction of 



128 



DAEWIN, C., referred to, 4 

 DE HAAN, quoted, 313 

 Development, 205 



abdomen, 213 



abdominal appendages, 217 



alimentary canal, 213, 222 



antennae, 214, 218 



antennules. 214, 218 



blood and blood vessels, 224 



b^anchiostegite, 217 



carapace, 214 



cephalic appendages, 217, 219 



connective tissue, 224 



ear. 225 



eye, 225 



eyestalk, 214, 218 



gills, 224 



heart, 224 



kidney, 224 



labrum, 218 



mandibles, 214 



Development of muscles, 224 



nervous system, 213, 224 



reproductive organs, 225 



rostrum, 217 



thoracic appendages, 217, 219 

 Digestion, 63 

 Distribution, 46 



chronological, of crayfishes, 44, 

 316, 339 



table of, 345 



geographical, of crayfishes, 44, 

 288 



causes of, 335 



results of study of, 308, 314 

 DORMER, quoted, 356 

 DULK, quoted, 349 



Ear, 116 



development of, 225 

 Ecdysis, 32, 350 

 Ecrevisse a pieds blancs, 289, 297 



a pieds rouges, 289, 297 

 Ectoderm, 141 

 Ectostracum, 194 

 Edelkrebs, 290 

 Endoderm, 141 

 Endophragmal system, 167 

 Endopleurite, 158 

 Endopodite, 145 

 Endoskeleton, 17 

 Endosternite, 158 

 Endostracum, 194 

 Engceus, 250, 306 

 Mtwplocytia, 342 

 Epiblast, 211 

 Epidermis, 140 

 Epimeron, 1 143 

 Epiostracum, 192 

 Epipodite, 167 



