Index 



breeding habits, 459 ; figures of, 

 opp. 494, 496, 502. 



Metazoan binuclearity, 189. 



Miehaelsen, W., cited on Metandro- 

 earpa michaelseni, 458; species 

 named for, 459. 



Microtus californicus californicus, 

 23; host of Giardia microti, 23. 



Mission Bay, 157, 164. 



Mitosis in Giardia muris, 38-43; pro- 

 phase, 39 ; metaphase, 41 ; ana- 

 phase, 42; telophase, 42; plas- 

 motomy, 42; of Trichomitus par- 

 vus, 90. 



Mitosis in Naegleria gruberi, 254 ; 

 behavior of organelles in, 249. 



Molgula (Caesira), 441. 



verrucifera, superficial character- 

 istics, 446 ; branchial system, 446 ; 

 digestive, and reproductive, sys- 

 tems, 447 ; habitat and distribu- 

 tion, 447; possession of siphonal 

 processes, 447; figures of, opp. 

 494, 498. 



Monocerconionas, species in, 129; gen- 

 eric characters, 134. 

 bufonis, 129, 132; generic char- 

 acters, 134. 

 eetoniae, 128. 

 hominis, 127. 

 inseetorum, 127. 



melolonthae, 128; figures of, opp. 

 136. 



Monoccrcomonas and PolymasUx, 127; 

 differences between, 134. 



Mouse, Spermatogenesis in. Some 

 Phases of, 371-380. See Chromo- 

 somes ; Spermatocyte ; Spermato- 

 genesis. 



Naegleria gruberi, formation of neu- 

 romotor apparatus, 209, 210; fig- 

 ures 11-14; investigations of, 

 242-243; material and methods, 

 243-245 ; movement, 245 ; mor- 

 phologv, 246; fission, binary, 247- 

 249, 276, multiple, 255, 276; 

 centriole, 251 ; reorganization of 

 nucleus, 252-255, 276; chromatin 

 extrusion, 252, 258-261, 277; 

 mitosis and amitosis, 254, 276 ; 

 budding, 256, exogenous, 256, 

 276, endogenous, 257, 277; cyst, 

 261-264; flagellate, 264-269; 

 sexual stages (gametogenesis, 

 syngamy) in cultures, 269-271, 

 278 ; comparison with related 

 amoebas, 271-272; systematic 

 position, 272-276 ; generic char- 

 acters, 273; synonyms, 275; lit- 

 erature cited, 278. See also 

 Amitosis ; Chromatin extrusion ; 

 Chromidia; Cyst; Fission; Flag- 

 ellate; Mitosis. 



Navicula, food for copepods, 178. 



"Nebenkern," in Paramoeba, 193, in 

 Plasmodium, 203. 



Neoclinus satiricus, 165. 



Neotoma fuscipes, new flagellate dis- 

 covered on Hemiptcran bug from 

 nest of, 113, 114. 



Neuromotor apparatus, in flagellates, 

 206; terminology, 206; forma- 

 tion, 209 ; in Naegleria gruberi, 

 209. 



Notes on the Marine Fishes of Cali- 

 fornia, 153. 



Notes on the Natural History and 

 Behavior of Emcrita analoga 

 (Stimpson), 431. 



Notes on the Spiny Lobster {Panu- 

 liriis interruptus) of the Cali- 

 fornia Coast, 139. 



Nowliu, Nadine, acknowledgment, 3. 



' ' Nucleo-cvtoplasmic ratio ' ' of Hert- 

 wig, 188. 



Nutrition of marine animals by or- 

 ganic compounds in solution in 

 the water, 175. 



Occurrence of a Rhjrthm in the Geo- 

 tropism of Two Species of 

 Plankton Copepods when Cer- 

 tain Recurring External Condi- 

 tions are Absent, 393; literature 

 cited, 400. 



Octomitus, history of name, 71. 



On the Life History of a Soil 

 Amoeba, 241. 



On a New Trichomonad Flagellate, 

 Trichomitus parvus, from the 

 Intestine of Amphibians, S9. 



On Some New Species of Aphrodi- 

 tidae from the Coast of Califor- 

 nia, 401 ; literature cited, 416. 



Ophichthus triserialis, 153. 

 zophoehir, 154. 



Order Binucleata. See Binucleata. 



Organic substances in solution in the 

 water as food for marine ani- 

 mals, 175; Putter's theory, 175- 

 176, 181. 



Organisms produced monogenetically, 

 problem of variation, 486. 



Ostraeoda, method of food-getting, 

 172. 



Otophidium galeoides, 167. 

 indefatigabile, 167. 

 scrippsi, 153, 166-168; description, 



167; figure of, foil. 169. 

 taylori, 166, 167. 



Outline, An, of the Morphology and 

 Life History of Critliidia lepto- 

 cordis, Sp. Nov., 1. 



Panulirus interruptus, spiny lobster 

 of the California coast, 139; size, 

 139, 148; color due only to in- 

 dividual variation, 140; armature 

 (spines), 140; habitat, 140; 

 food, 141; enemies (sheephead, 

 conger-eel, jew-fish, devil-fish). 



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