412 



INDEX — GLOSSARY 



Amcebea, 88.- 



-Vmphibia, 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, t^it^. 



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, 71. 



Annularia, 50; A. longifolia, 30. 



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, 27g, 286 ; of Estheria, 302 ; of 

 the lobster, 270 ; of phyllopods, 302 ; 

 of trilobites, 286. 



Antennules, the anterior of the two 

 pairs of feelers upon the head ; of 

 trilobites, 2S6, 288, 289. 



Anterior adductor muscle, 20Q ; retractor 

 muscle, 209, 210, 211, 214. 



x\nthers, 56. 



.\nthozoa, 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. 



Apus, 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- 



