INDEX. 
Branchie—continued 
Astacus, 25, 75, 265 
development of, 224 
Cancer, 276 
Homarus, 257 
Palemon, 270 
Palinwrus, 264 
Penaeus, 267 
Branchial chamber, 25 
formula, 
Astacoides, 266 
Astacopsis, 264 
Astacus, 266 
Cancer, 277 
hypothetically complete, 268 
Palemon, 270 
Palinurus, 265 
Penaeus, 267 
Branchiobddella, 356 
Branchiostegite, 25 
development of, 217 
BRAUN, quoted, 352 
Brazilian Crayfishes, 306 
c. 
Cecum, 61 
Calcification of exoskeleton, 197 
Californian Crayfishes, 243 
Cambarus, 44, 247, 310, 312 
Cancer, 272, 283 
Carapace, 19 
development of, 214 
CARBONNIER, M., quoted, 297, 349, 
350 
Cardia, 52 
Caridina, 330 
Carpopodite, 165 
Cell, 66, 199 
Cell-aggregate, 190, 199 
division, 200 
theory, 202, 204 
365 
Cephalic appendages, 170 
development of, 217 
flexure, 163 
somites, 154 
Cephalon, 19, 141 
Cephalothorax, 19 
Cervical groove, 19 
spines, 234 
CHANTRAN, M., quoted, 348, 350. 
361 
Chel, 22 
Chilian Crayfishes, 308 
Chitin, 50 
composition of, 347 
Cheraps, 250 
Chorology, 46 
Circulation, 73 
organs of, 68 
Common knowledge and science, 3 
Connective tissue, 178 
development of, 224 
Core, Prof., quoted, 316 
Cornea, 118 
Coxopodite, 143 
Coxopoditic sete, 78 
Crab, see Cancer 
Crab’s-eye, see Gastrolith 
Crangon, 272 
Crayfish, origin of name, 12 
common, see Astacus fluviatilis 
Crayfishes, Amurland, 304 
Asiatic, 304 
Australian, 306 
Brazilian, 306 
Californian, 243 
Chilian, 308 
definition of, 254 
Eastern North American, 247, 
305 
European, 288, 297 
evolution of, 831 
