INDEX 



127 



Chromatophores (kro'ma-to-fors) : 



among Cryptophyceae, 65; among 

 diatoms, 63; in the Peridiniales, 67 

 Chromosomes (kro'mo-soms) : defined, 

 33 ; carry the genes, 41 ; in Uroleptus 

 halseyi, 41 

 Chronology, Geologic, 4, 5 

 Chrysocapsina (kns"6-kap-sln'a), 48 

 Chrysomonadida (kris"6-mon-a-did'a) , 



48, 49, 60 

 Chrysophyceae (kns"6-fi'se-e), 49, 60 

 Cilia (sil'i-a) ; description of, 80 

 Ciliates (sil'i-ats) : description of, 80; 

 differentiation into male and female, 

 114 

 Clams : parasites of, 25 

 Classifications, Biological: bases of, 38, 

 40; clarity needed, 46; orderly sys- 

 tem, 2; plant flagellates, 48, 49; pur- 

 pose of, 46 

 Cleveland, Lemuel Roscoe (1892- ), 



American biologist, 103 

 Cliffs, Chalk, 78 

 Closterium (kloz-te'ri-um), 59* 

 Clover, Red : stimulated by bacteria, 21* 

 Coccidia (kok-sid'i-a) : differentiation 

 into male and female, 114; parasitic, 

 105*, 106 

 Coccoid (kok'oid) bodies: defined, 25; 



of spirochaetes, 24*, 32 

 Coccus (kok'us) (plural, cocci) : de- 

 fined, 16, 17 

 Codonosiga cymosa (co-do-no'si-ga sl- 



mo'sa), 73* 

 Coelospherium (se"16-sfe'ri-um), 51 

 Cold : effect, on protoplasm, 39 

 Colds, Common : cause of, 15 

 Collodictyon (ko-l6"dik-ti'6n), 71* 

 Colloidal (ko-loi'dal) particles, 34 

 Colonies : among algae, 50 ; among ani- 

 mal flagellates, 75 ; among chryso- 

 phyceae, 61 ; among ciliates, 84; among 

 the Isokontae, 53; arboroid, 51, 52*, 

 61, 73*, 75*, 84*; bacterial, 18; bell- 

 animalcules, 13*; catenoid, 51, 61 ; co- 

 donosiga cymosa, 73; diphtheria ba- 

 cilli, 18*; division of labor, 46; Epis- 

 tylis umbellaria, 84*; four-celled, 58; 

 Gonium pectorale, 51* ; Hyalobryon 

 deformans, 52*; Pleodorina californi- 

 ca, 56* ; Poteriodendron pctiolatum, 

 75*; Scenedesmus, 58; Spondylomo- 

 rum quarternarium, 56*; Stephano- 

 sphaera pluvialis, 56*; Synura uvella, 

 61*; Uroglenopsis americana, 51*; 

 volvox, 55* 

 Colpidium colpoda (kol-pi'di-um kol- 

 po'da), 97* 



Columella (kol"u-mel'a), 24 

 Commensals (ko-men'sals) : protozoa 

 and higher animals, 102; spirochaetes, 

 23 

 Conjugatae (kon"j'66-ga'te), 60 

 Conjugation (kon"j66-ga'shun) : de- 

 fined, 85; age when possible, 114; 

 among the desmids, 60; among Infu- 

 soria, 85; restores vitality, 113; Uro- 

 leptus mobilis, 85* 

 Corals : first appearance, 6 

 Cosmarium (koz-ma'n-um), 59 

 Crista (kris'ta) : defined, 26; in Cristi- 



spira, 25* 

 Cristispira balbianii (kns"ti-spi'ra bal"- 



bT-an'i-I), 25* 

 Crithidia (krlth'i-di-a), 103 

 Crops : aided by bacteria, 21* 

 Crustacea (krus-ta'she-a) : dependent on 



bacteria, 22; first appearance, 6 

 Cryptomonadida (krip"t6-mon-a-dTd'a) , 



48, 49, 65 

 Cryptomonas (krip"t6-mon'as), 65 

 Cryptophyceae (krip"t6-fi'se-e), 49, 65 

 Cucumber-like odor in water, 6l* 

 Cyclospora karyolytica (sI"kl6-spo'ra 



kar"i-6-Ht'Tk-a), 104, 115 

 Cystoflagellina (sis"t6-flaj"e-lm'a), 48 

 Cysts (slsts) : Didinium nasutum, 36*; 

 Hydrurus foetidus, 50* ; Uroleptus mo- 

 bilis, 35*; see also Encystment 

 Cytology (si-tol'o-ji) : defined, 2 

 Cytoplasm Csi'to-plaz'm) : description 



of, 31 

 Dallinger, William H., an English ex- 

 perimenter, 101 

 Dallingeria (dal"in-je'ri-a), 101 

 Defecation : function of, 100 

 Denitrifying bacteria, 20, 21 

 Derived organization: defined, 34; af- 

 fected by amphimixis, 115; basis for 

 biological classifications, 40; differ- 

 ences from fundamental organization, 

 38; effected by environmental stimuli, 

 39; enduring modifications, 39, 40; 

 functional activities, 88; its evolution 

 keeps pace with that of the funda- 

 mental organization, 41 ; relation to 

 fundamental organization, 40; Uro- 

 leptus halseyi, 37* 

 Desmidium (des-mid'i-um), 60 

 Desmids (des'mifds) : classification, 49; 

 Closterium, 59* ; dependent on bac- 

 teria, 22; description of, 58; do not 

 have a palmella phase, 54; in scum- 

 covered pools, 42 



