INDEX — GLOSSARY 



419 



Coleoptera, 318, 31Q. 



Collar-bone, see clavicle. 



Collecting fossils, 22. 



Colloidal, jellylike in appearance. 



Colon, ascending, jjo ; descending, 330 ; 



transverse, jjo. 

 Colonies, in Hydrozoa, iii ; in sponges, 



96. 

 Color, of fossils, 20. 

 Columella, of corals, 128 ; of gastropods, 



238, 239, 243. 

 Columellar muscle, 238. 

 Columnaria, 132 ; C. alveata, 133. 

 Comanchean, 407. 



Comanchean fossils figured, 61, 22y. 

 Comb-jellies, 139. 

 Combretanthites eocenica, 76. 

 Comparison of mammalian brains, 37s- 

 Concentric growth lines, 210, 215-216, 



215- 



Concentric lines, see concentric growth 

 lines. 



Conch, a name given to various marine 

 gastropods. 



Conchiolin, in pelecypods, 215. 



Condylarthra, 384, 384, 385, 3S5; 

 closely related to the early Carnivora 

 (Creodonta), 385 ; generalized type, 

 384, 385 ; geologic range of, 385. 



Condyle, a rounded articulating sur- 

 face at the end of a bone. 



Cones, of Calamites, 50 ; of club-mosses, 

 51; of conifers, 70; of cycads, 66; 

 of Lepidodendron, 53 ; of Sigillaria, 54 ; 

 of spermatophytes, 56. 



Coney, 386. 



Coniferales, 70-75 ; derivation of, 70 ; 

 geologic range of, 408. 



Coniferous types, 351. 



Conifers, classification of, 70-74 ; deri- 

 vation of, 70; relationship to Cor- 

 daites, 68. 



Conocoryphe, 291. 



Conodonts, 146, 146. 



Contractile vacuole, in Amceba, 84, 85, 

 86 ; in Protozoa, 84. 



Conidaria, 249. 



Conularid, one of the Conularida, 24Q. 



Conularida, 249, 24Q. 



Convergence, in the Fissipedia, 381. 



Copepoda, 304, 306 ; see also copepods. 



Copepods, 304 ; food of Globigerina, 90 ; 



free-swimming, 304 ; habitat of, 304 ; 

 parasitic, 304. 



Coprolites, 9, 17; of ichthyosaurs, 358. 



Coracoid bone, of birds, 372 ; of rep- 

 tiles, 360, 362, 366, 367. 



Corallina, 37 ; C. officinalis, 27. 



Corallines, 37. 



Corallites, in Bryozoa, 178; in corals, 

 122, 128, 136, 137. 



Cor allium, 128. 



Corallum, 128. 



Coral-reefs, alga? in formation of, 38 ; 

 corals in, 130; corals in formation of, 

 38 ; Foraminifera in formation of, 38. 



Corals, 122-138; asexual reproduction 

 in, 129, 130; digestion, etc., see 

 Astrangia; distribution of, 130; fossil, 

 131-138; geologic range of , 409 ; im- 

 perforate, 130; in coral-reefs, 38; 

 nematocysts in, 129; nettle-cells in, 

 129; perforate, 129; reef-building, 

 130; reproduction of, 125, 129; 

 secretion of lime in, 125; sexual re- 

 production in, 129; skeleton in, 128; 

 tabulate, 113, 136-138. 



Coranoid, in reptiles, 367. 



Cordaitales, 67-69 ; relationship to 

 other gymnosperms, 68. 



Cordaites, 21, 67, 68, 69, 351 ; C oweni, 68 ; 

 casts of pith cavity of, 67 ; fruit of, 67. 



Corium, see dermis. 



Cornea of eye, 334. 



Corolla, 76. 



Corpuscle, — an animal cell formed 

 largely of protoplasm. 



Corrodentia, 318. 



Coryphodon, 386. 



Coscinodiscus lineatus, 34. 



Costae, the vertical ridges upon the 

 outer side of a coral. True costae 

 are the outer edges of the septa. 



Costal bones, in turtles, 366. 



Cotyledon, 77. 



Crab, blue, 307; edible, 307; horse- 

 shoe, 277, 312; Japanese spider, 307; 

 soft-shelled, 308. 



Crabs, parasites in, 305. 



Crania, 188, 192, 195 ; C. bordeni, IQ5. 



Cranial nerves, i3i- 



Craniata, 322, 323-402 ; classification 

 of, 323 ; gill-slits in, 323 ; notochord 

 in, 323- 



