Index 



Cocaine, effect of on nerve cord of 

 earthworms, 143. 



Coccudina keromina, 338. 



Cochlodinium citron, 93, 94. 

 pulchellum, 91. 



Cockerell, F. D. A., cited, 205. 



"Cold islands," 198. 



Coleps, genus, 380. 



Columbella gausapata, 303, 320, 321. 



Commensal polynoids, 213, 216; ad- 

 vantages of, 219, 220; plasticity 

 in, 224; adaptive variation in 

 setae of, 224; variation in color, 

 225, 226; external changes, 227. 



Conor, A., cited, 509. 



Coreus marginatus, 79. 



Cort, W. W., 485, 509. 



Crepidula nivea, 303, 307, 320, 321. 



Crithidia euryopthalmi, sp. nov., from 

 the Hemipteran Bug, Eury- 

 opthalmus convivus Stk\, 75. 



Crithidia euryopthalmi, compared 

 with C. lepticoridis, 76; infec- 

 tion of Euryopthalmus convivus 

 by, 81, 83, 85, 87; life cycle, 

 82; infective and degenerative 

 cycles, 87. 

 lepticoridis compared with C. eury- 

 opthalmi, 76. 



Crockett, California, 30. 



Cropper, J. W., cited, 145, 148. 



Coyptochiton stelleri, 213. 



Cysts in Giardia microti, 20, 23. 



Cytoplasmic structures and changes, 

 correlation of mitosis with, 18. 



Daday, E., cited, 91, 92. 



Daniel, J. F., 479. 



Daboux, J. G., cited, 224. 



Da Silva, M. P., cited, 488. 



Davidson, Pirie, 151. 



Dechant, E., cited, 129, 130. 



Degenerative cycles in Euryopthal- 

 mus convivus, 87. 



Delage, Y., cited, 96. 



Diatoms, influence of temperature 

 on, 200. 



Delitzsch, Saxony, 401. 



Didinium, genus, 381. 

 nasutum, 380, 384. 



Differentials in Behavior of the Two 

 Generations of Salpa democrat- 

 ica Relative to the Temperature 

 of the Sea, 239. 



Dinifera, 404, 458. 



Dinoflagellata, morphology of, 89; 

 Eryopthropsis admitted to, 96; 

 relationship and morphology of, 

 400; habitat, 401; flagella of, 

 401; shell of, 402; protoplasm 

 of, 403; asymmetry in, 403, 462; 

 horns or spines in, 403. 



Dinophysidae, 404, 405, 458. 



Dinophysis, 405. 



Diplodinium ecaudatum, 365, 366, 

 378, 379, 380, 381, 383, 384, 385. 



Dufour, L., cited, 79. 



Earthworm, description of locomo- 

 tion in, 104-105; function of the 

 nerve cord, 104, 105-106; effect 

 of anesthetizing, 107-108, 109; 

 tension, in etherized worms, 109, 

 in locomotion, 112-118; locomo- 

 tor impulses, limits of transmis- 

 sion, 118-122, rates of transmis- 

 sion, 122-125; giant fiber im- 

 pulses, 125-128. 



Earthworm, The Transmission of 

 Nervous Impulses in Relation to 

 Locomotion in, 103. 



Earthworms, Function of Giant 

 Fibers in, 135; theories regard- 

 ing, 136; functions of the nerve 

 cord, 136; experiments in tran- 

 section of nerve cord, 137-138, 

 in regeneration of, 138-142, in 

 removal of, 140-142, with sto- 

 vaine, 143; summary, 144. 



Ectoparasitic polynoidae, 224. 



Egyptian blood fluke, 485. See also 

 Schistosoma haematobium. 



Ehlers, E., cited, 62, 172, 204, 206. 



Ehrenberg, C. G., cited, 338, 401. 



Elasmobranch Fishes, Subclavian 

 Vein in, and Its Relations, 479; 

 material studied, 479; method, 

 480; observations on material 

 studied, 481-482; discussion, 483. 



Engelmann, I. W., cited, 356, 378, 

 380. 



Entamoeba, 145. 



Environment, effect of, on animal 

 life, 173, 215, 216. 



Enzymes, 226. 



Epitonium hindsi, 303, 307, 320, 322. 

 savinae, 303, 307, 320. 



Erythropsis, orientation of, 89, 92; 

 transverse flagellum of, 93; ocel- 

 lus, 94; prod (tentacle), 94; 

 prod (tentacle), 94; girdle, 96; 

 paradinial lines, 97; attachment 

 area, 99. 

 agilis, 95; figures of, 98. 

 cornuta, figure of, 98. 



Essenberg, Christine, 45, 171. 



Eunoe, genus, 212. 

 barbata, 47. 

 caeca, 183. 



Euperidinium, genus, 411. 



Euphrosinidae, 62. 



Euphrosyne aurantiaca, 64, 65. 



calsrpta, 63-65; figures showing, 



opp. 72. 

 dumosa, 69. 

 kyllosetosa, 63, 68-69. 

 limbata, 69. 



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