412 



INDEX — GLOSSARY 



Amcebea, 88/ 



Amphibia, 349-354; differ from fish, 

 349 ; geologic range of, 409 ; habitat 

 of, 349 ; mucus-secreting glands of, 

 349 ; respiration of, 349 ; subdivision 

 of, 349. 



Amphibians, see Amphibia. 



Amphineura, 207-208, 208; geologic 

 range of, 409 ; skeleton, etc., see 

 chitons. 



Amphioxus, 323. 



Amphipoda, 307. 



Ampulla, 150, 151. 



Anal fin, 346. 



Anal respiration, 304. 



Anal siphon, the exhalent or excurrent 

 siphon. 



Anaptomorphida?, 399. 



Anaspidacea, 306. 



Anatinacea, 221. 



Ancestral characters, repetition of, see 

 recapitulation. 



Ancestry, see evolution and recapitula- 

 tion. 



Anchisaurus, 360. 



Ancient geography, interpretation of, 



23- 



Ancylopoda, 396. 



Ancyrocrinus, 159. 



Andrias scheuchzeri, 353. 



Anelasma, 305. 



Angiospermae, 75-82 ; flower, etc., see 

 angiosperms. 



Angiosperms, 62, 75-82, 351; asexual 

 stage in, 77 ; earliest appearance of, 

 77; fertilization in, 76, 43; flower of, 

 76; fossil, 77; gametophyte stage in, 

 77; geologic range of, 408; rapid 

 rise of, 77 ; sexual stage in, 77 ; 

 sporophyte stage in, 77. 



Animals, 83-402 ; distinguished from 

 plants, 2,29; evolution of, 83 ; migra- 

 tion of, 23, 24. 



Ankle bones, see tarsal bones. 



Annelids, the annulate worms, in evolu- 

 tion, 274. 



Annual rings in wood, 7/. 



Annularia, 50; A. longifolia, 50. 



Annulata, 140, 141-147; compared to 

 Peripatus, 308; digestion, etc., see 

 Nereis; fossils of, 146-147; geologic 

 range of, 409. 



Anodonta, sex in, 221. 



Anomodontia, 355-356; geologic range 

 of, 356 ; intermediate position of, 

 356; teeth of, 355. 



Anomodonts, see Anomodontia. 



Anteater, 382 ; spiny, 378. 



Antelopes, 398 ; pronghorn, 398 ; in 

 North America, 375 ; teeth of, 396. 



Antenna (plu. antennas), of crustaceans, 

 276, 27 Q, 286 ; of Estheria, 302 ; of 

 the lobster, 27Q ; of phyllopods, 302 ; 

 of trilobites, 286. 



Antennules, the anterior of the two 

 pairs of feelers upon the head ; of 

 trilobites, 286, 288, 289. 



Anterior adductor muscle, 20Q ; retractor 

 muscle, 20Q, 210, 211, 214. 



Anthers, 56. 



Anthozoa, 122-138; compared with 

 Hydrozoa, 128; digestion, etc., see 

 Astrangia; fossils of, 131-138; geo- 

 logic range of, 409; survey of, 128- 

 131. 



Anthracomarti, 316. 



Anthropoid apes, 400; chimpanzee, 

 400; gibbon, 400; gorilla, 400; 

 orang-utan, 400. 



Anthropoidea, 399. 



Anthropoids, 399. 



Ants, 319; white, 318. 



Anura, 349, 353 ; development of, 353 ; 

 eggs of, 353 ; fossil, 353. 



Aorta, in the cat, 330 ; in pelecypods, 

 212. 



Apes, anthropoid, 400. 



Aplacophora, 208. 



Appalachian Revolution, 191. 



Appendages, of crayfish, 275-276, 276; 

 of trilobites, 2S6. 



Appendix, vermiform, 330. 



Aptera, 320. 



A pus, 299-301; A. lucasanus, 300; 

 appendages of, 300, 300 ; blood cir- 

 culation of, 301 ; compared to the cray- 

 fish, 299-300; compared to Triar- 

 thrus, 285; digestive system of, 300; 

 eyes of, 300, 301 ; food of, 300 ; gills 

 of, 301 ; gnathobases of, 300 ; habitat 

 of, 299 ; heart of, 300, 301 ; more 

 primitive than the crayfish, 300; 

 muscular system of, 300; nervous 

 system of, 301 ; relationship to trilo- 



