Index 



Eoudsky, experiments on parabasal 

 body, 230. 



Sagillina, 489. 



San Diego Bay, 157, 160, 165, 168. 



San Diego region, ascidians collected 

 from, 439. 



San Pedro, 164, 165, 169. 



San Pedro Bay, occurrence of ascid- 

 ians, 448. 



Sand-erab. See Emerita analoga. 



Santa Barbara Harbor, 142, 143, 165. 



Santa Barbara Islands, 439. 



Santa Catalina Island, 165, 166. 



Santa Cruz Island, 142, 143. 



Santa Rosa Island, 142. 



Schaudinn, binuclear hypothesis, 188, 

 189; attempt to establish nuclear 

 dimorphism among Rhizopoda, 

 190 ; interpretations of phenom- 

 ena, discussed, 191. 



Schizotrypanum cruzi, crithidial 

 stages, 2, 3, 5; sexually differ- 

 entiated forms, 197, 208, fig. 7. 



Schumacher, I. C, 95. 



Scolecithrix persecans, 179, 180. 



Scombresox brevirostris, 157. 

 saira, 157. 



Scripps Institution for Biological Re- 

 search, 139, 153. 



Sebastodes aurora, 161. 

 diploproa, 162. 

 elongatus, 163. 

 goodei, 161. 

 guttata, 163. 

 saxicola, 162; figures of, foil. 169. 



Siren lacertina, cultivation of tissues, 

 56. 



Some Phases of Spermatogenesis in 

 the Mouse, 371; literature cited, 

 .■:79. 



SoutliiTn <'nlifoniia, ascidians of, 439. 



Specificity in Behavior and the Re- 

 lation between Habits in Nature 

 and Reactions in the Labora- 

 tory, 3S1; literature cited, .390. 



Spermatocyte, in testis of mouse, 

 primary, secondary, 374, 375 ; 

 shape and number of chromo- 

 somes in, 374—376 ; dimorphism 

 in, 377. 



Spermatogenesis, in mammals (the 

 mouse), object and extent of in- 

 vestigation, 372; methods, 372; 

 structure of the testes, 373-377; 

 division of the spermatocytes, and 

 chromosomes, 374-376, 378; di- 

 morphism, 377, 378; spindle fibres 

 and centrosome, 377. See also 

 t'liromosomes ; spermatocyte. 



Spermatogenesis in the Mouse, Some 

 Phases of, 371; literature cited, 

 379. 



Styela (Tethyum), 442. 



liamharti, superficial character- 

 istics, 452; branchial system. 



452 ; digestive, and reproductive, 

 systems, 453 ; peculiarity of size 

 of ovaries, 454; figures of, opp. 

 494, 502. 

 gibbsii, 452. 

 macrenteron, 451. 

 montereyensis, 448; superficial 

 characteristics, 448; branchial 

 system and spinules, 449 ; diges- 

 tive, and reproductive, systems, 

 450; breeding time, 450; habitat 

 and distribution, 450 ; figures of, 

 opp. 494, 500. 

 yakutatensis, figure of, opp. 500. 



Swezy, Olive, 71, 127, 185; acknowl- 

 edgment, 401. 



Synedra, food for eopepods, 179. 



Syngnathus californiensis, 158. 

 aretus, 160. 

 auliscus, 160. 

 barbarae, 159. 

 griseolineatus, 159, 160. 

 leptorhynchus, 158, 160. 



Synoicidae, 489. 



Talt, E. B., acknowledgment, 96. 



Tauaka, cited, 157. 



Technique of study of amphibian tis- 

 sues, 55, 57; of Hexamitus, 73. 



Tethyum (Styela), 442. 



Thalassiosira, food for eopepods, 177. 



Thalassiothrix, 178, 179. 



Three New Helices from California, 

 107, 



Tia .Juaua River, 157, 164. 



Tintiiiiioina, loricae of, 6.'i, 



Tintinnoina, Notes on the, 1. On the 

 Probable Origin of Duiuunista 

 Tiara Haeckel, 63; 2. On Pcialo- 

 tricha Entzi Sp. Nov., 66; liter- 

 ature cited, 69. 



Triatoma protracta, 114, 120. 



Tru-hnmastia, 127. 



Trichoraitus, 93; generic characters, 

 93; type species, 93, 



Trichomitus PaiTtia. A New Tricho- 

 monad Flagellate from the In- 

 testine of Amphibians, 89 ; moi- 

 phology, 89; mitosis, 90, 91 ; mul- 

 tiple fission, 92; type species, 93; 

 literature cited, 93 ; figures of. 

 opp. 94. 



Trichomonad flagellates, 7. 



Trichomonas, 127. 

 augusta, 223, fig. 58. 



Trichonymphidae, development of 

 parabasal body in, 21.5-227. 



Trichosphaerium sieboldi, life cycle 

 of, compared with that of Plas- 

 modium vivax, 204. 



Trididemnum, synoptic de.scription, 

 444. 

 della vallei, superficial character- 

 istics, 472; zooids, 473; branch- 

 ial, digestive, and reproductive, 

 systems, 473 ; period of egg pro- 



[521] 



