see 



INDEX. 



Crayfishes, Figiaa, 306, 313 



Japanese, 304, 313 



Mascaiene, 308, 313 



northern and southern, com- 

 pared, 252 



Kovozelanian, 306, 313 



southern, 249 



Tasmanian, 306 



Western North American, 306, 

 313 

 Crustacea, 271, 278 

 Crystalline cones, 121 

 Cuticle, 33, 50, 175, 192 

 Cyclas, 356 



Dactylopodite, 165 



Dajphiiia, asexual reproduction of 



128 

 Daewin, C, referred to, 4 

 Db HaaN, quoted, 313 

 DeTelopment, 205 



abdomen, 213 



abdominal appendages, 217 



atimentary canal, 213, 222 



antennee, 214, 218 



antennules, 214, 218 



blood and blood vessels, 224 



bianchiostegite, 217 



carapace, 214 



cephalic appendages, 217, 219 



connective tissue, 224 



ear, 225 



eye, 225 



eyestalk, 214, 218 



gills, 324 



heart, 224 



kidney, 224 



labium, 218 



mandibles, 214 



Development of muscles, 224 



nervous system, 213, 224 



reproductive organs, 226 



rostrum, 217 



thoracic appendages, 217, 219 

 Digestion, 63 

 Distribution, 46 



chronological, of crayfishes, 41, 

 316, 339 



table of, 346 



geographical, of crayfishes, 44, 

 288 



causes of, 336 



results of study of, 308, 314 

 DoBUEB, quoted, 356 

 DULK, quoted, 849 



B. 

 Bar, 116 



development of, 226 

 Ecdysis, 32, 360 

 i^revisse ii pieds blancs, 289, 2S)7 



a pieds rouges, 289, 2b7 

 Ectoderm, 141 

 Eetostracum, 194 

 Edelkrebs, 290 

 Bndoderm, 141 

 Endophragmal system, 167 

 Endopleurite, 158 

 Endopodite, 145 

 Endoskeleton, 17 

 Endostemite, 158 

 Endostiacum, 194 

 Mngceus, 250, 306 

 Hrwplocytia, 342 

 Epiblast, 211 

 Epidermis, 140 

 Epimeron, 143 

 Epiostracum, 192 

 Epipodite, 167 



