Index 



Dactyliosolen tenuis, 338, 340, 441. 



Dactylococeopsis rhaphidioides, 38. 



Daphnia, 108. 



Davenport, cited, 316. 



Denticula, 60. 



Depth, factor in growth of Teredo, 

 298, 308. 



Deshayes, cited, 455, 459, 461, 462. 



Diaptomus, 110. 



Diaschiza exigua, 100. 

 gibba, 106. 



Diatoma, 60. 

 vulgare, 60. 



Diatomella, 60. 



Diatoms, 46, 47, 48, 331, 332, 335, 

 345, 370, 376; localized abund- 

 ance, 333; diurnal rhythm in 

 productivity, 334; perennially 

 present, 335; production and dis- 

 tribution, seasonal, numerical, 

 335, 371, 372, 373, 375, 377, 415, 

 416, 429, 442, 447-448; species, 

 337-341, 440; twelve-hour catches 

 compared, 370 ; variation in kinds 

 of organisms, 374, 377; ratio to 

 dinoflagellates, 377, 435-445; 

 tide-water collections, 413-416; 

 depths and numbers per liter, 

 438; surface distribution, table, 

 446. 



Didinium balbianii, 85. 

 nasutum, 81. 



Didymoprium, 64. 



Dimugia, 75, 84. 

 acuminata, 77. 

 corona, 77. 

 globulosa, 77. 

 pyriformis, 77. 



Digestion of Wood by Teredo navalis, 

 383-400. 



Dimorphococcus lunatus, 46. 



Dinema, 74. 



Dinobrvon sertularia, 69. 



Dinoflagellates, 331, 342, 345, 370, 

 376, 435—445; abundance, rela- 

 tive, and seasonal, 332, localized, 

 333; statistical value, 332; di- 

 urnal rhythm in productivity, 

 334; volumetric importance, 342; 

 species, 343-344, 442; twelve-hour 

 catches compared, 370; seasonal, 

 numerical distribution, 371, 372, 

 373, 375, 377; variations in kinds 

 of organisms, 374, 377; ratio to 

 diatoms, 377, 414, 436, 437, 448; 

 depths and numbers per liter, 

 440. 



Dinophysis homunculus, 344, 345, 

 442. 

 acuta, 344. 

 hastata, 344. 

 ovata, 344. 



Diplocystis, 79. 

 Diploneis elliptica, 61. 

 Diplosiga, 74. 

 Diplosigopsis entzi, 74. 

 Ditylium, 338. 

 Diurella, 55, 98. 



porcellus, 106. 



tenuior, 106. 

 Docidium, 64. 

 Donax, 463. 

 Dore, W. H., 383. 

 Draparnaldia plumosa, 46. 

 Dumbarton, 304, 306, 310, 312, 315, 



404. 

 Ecological effects, on shell of Teredo, 

 298, 301, 306, 311, 315, 317; 

 plankton and the ecological com- 

 plex, 330, 345, 350, 367, 404-406, 

 415-416, 429, 445. 

 Elmore, C. J., acknowledgment, 5; 



cited, 50, 61. 

 Enchelys, 85. 

 Encyonema turgidum, 61. 

 Entomostraca, 29, 30, 32, 47, 85, 106, 



107, 114, 115, 116, 117, 120. 

 Epiphanes clavulata, 98. 

 Epistylis, 85. 

 Epithemia granulata, 60. 



ocellata, 52, 61. 



gibba, 61. 



sorex, 60. 



turgida, 60, 61. 

 Essenburg, Christine E., 379. 

 Esterly, Calvin O., 417. 

 Eucampia zoodiaeus, 338, 374, 375, 



416, 440, 441. 

 Euchlanis dilatata, 106. 

 Eudorina, 71. 



elegans, 69, 70, 73. 

 Euglena acutissima, 74. 



deses, 70. 



viridis, 70. 

 Euglypha alveolata, 77. 

 Eunotia flexuosa, 60. 



major, 60. 



pectinalis, 60. 



robusta, 61. 

 Euplotes patella, 81. 

 Filinia brachiata, 98; eggs, 104. 



cornuta, 106. 



longiseta, 99. 

 Fisheries, affected by abundance of 



plankton, 429. 

 Flood waters, deleterious effect of, on 



plankton, 107. 

 Food factor, in occurrence of plank- 

 ton, 100, 101, 113, 115, 116, 429. 

 Fragillaria capucina, 48, 53, 61. 



crotonensis, 53. 



mutabilis, 60. 

 Frontonia, 85. 



[479] 



