364 
Astacus fluviatilis—continued 
histology, 174 
mortality, 127 
muscular system, 90 
myths concerning, 44 
name, origin of, 13 
nervous system, 101 
newly hatched young, cha- 
racters of, 219 
nutrition, 48 
occurrence, 5, 8 
organs of alimentation, 
51 
circulation, 68 
excretion, 82, 353 
hearing, 116 
reproduction, 128 
respiration, 75, 353 
sight, 118 
smell, 114 
taste, 115 
touch, 113 
prehension of food, 49 
putrid, effect of smell of, 
45 
reproduction of lost limbs, 
38 
reproduction, sexual, 39, 
128, 135, 350 
sexual characters, 7, 20, 
32, 145, 241 
somites and appendages, 
143 
systematic description; 
230 
use as food, 10, 289 
varieties, 289 
Jontinalis, 290 
japonicus, 304 
hlamathensis, 305 
leniusculus, 305 
INDEX. 
Astacus leptodactylus, 299, 302 
303, 310, 320 
nigrescens, 244 
nobilis, 290, 295, 296, 299, 
310 : 
oreganus, 305 
pachypus, 302, 310 
pallipes, 290 
politus, 344 
saxatilis, 290 
Schrenchii, 304, 310 
torrentium, 290, 294, 298, 310, 
311 
tristis, 290 
Trombridgit, 305 
Atya, Atyida@, 331, 336 
Auditory organ, 116 
setze, 116 
‘Australian Crayfishes, 306 
province, 314 
Austrocolumbian province, 314 
Axius, 271 
B. 
BALL, R., quoted, 36 
Basipodite, 143 
BELL, T., quoted, 37, 42 
Bile-duct, 61, 66 
Biological sciences, scope of, 4 
Blastoderm, 207 
Blastomere, 205 
Blastopore, 209 
Blood, 31, 68, 176 
corpuscles, 69, 176 
development of, 224 
sinuses, 50, 69 
BOBRETSKY, referred to, 356 
BOLIvAR, Dr., 298 
Branchiz, 
Astacoides, 266 
Astacopsis, 264 
