252 ANIMAL 
Birds, characteristics of, 201; anat- 
omy of, 204; habits of, 207. 
Bird spider, 136. 
Bittern, 215. 
Black-snake (illus.), 193. 
Blastula (illus.), 21. 
Bombus (illus.), 180. 
Bony fish (illus.), 160. 
Botany, defined, 1. 
Brachiopod (illus.), 70. 
Bradypus tridactylus (illus.), 229. 
Branchiostoma californiense (il- 
lustration), 157. 
Branchtpus (illus.), 94. 
Brittle-star (illus.), 141; regenera- 
tion of, 145. 
Bugs, 121. 
Bumblebee (illus.), 180. 
Butterflies, 125. 
Buzzard, 219. 
Byssus, 77. 
Caddis-fiy, 119. 
Calcolynthus primigenius (illus.), 
25. 
Calypte anna (illus.), 224, 
Cancer productus (illus.), 104. 
Capreila (illus.), 106. 
Carapace, of crustacea, 95, 99; of 
turtle, 188. 
Carp, 163. 
Cat, domestic, 239; wild, 239. 
Catfish, 163. 
Cell (cedZa, a little room), 7; shape 
and size, 7; typical (illus.), 8. 
Centipeds (illus.), 111. 
Cephalopod (illus.), 87. 
Cephalothorax, 99. 
Cercopithecus (illus.), 244. 
Cervus canadensis (illus.), 238, 
Cestode (illus.), 50. 
Cete, 284, 
FORMS 
Cheiroptera, 284. 
Chelonia, 188. 
Chinch-bug, 122. 
Chiton (illus.), 82. 
Chologaster avetus (illus.), 164; C. 
agassizt (illus.), 164. 
Chordate, characteristics of, 151. 
Chordeiles virginianus  (illus.), 
222. 
Chub, 163. 
Cilium (ciliwm, an eyelash), 16. 
Circulatory system, use of, 4. 
Clam (illus.), 72; anatomy, 72, 78 ; 
rock- and wood-boring, 75. 
Clitellum, 58. 
Coccyges, 220. 
Cockroach, 118. 
Ceelenterates, general character- 
istics of, 18. 
Coleoptera (illus.), 124, 
Columba, 210. 
Complex animals, characteristics 
of, 18. 
Compound eyes, 109. 
Coot, 215. 
Copperhead, 198. 
Corals (illus.), 41. 
Cormorant, 212. 
Correlation of function and struc- 
ture, 6. 
Cottontail, 233. 
Courting colors, 203. 
Crab, hermit (illus.), 102; cancer 
(illus.), 103; rock (illus.), 104; 
fiddler, 104. 
Crane (illus.), 215. 
Crayfish (illus.), 101. 
Cricket, 118. 
Crinoid (illus.), 148. 
Crocodile, 190. 
Crocodilia (illus.), 190. 
Crotalus adamanteus (illus.), 222. 
