Index 



variation and correlation in 

 proportional measurements, 

 102; variations in width of 

 body, 103; in length of ven- 

 tral ganglion, 104; in interval 

 from anterior to posterior fin, 

 106; in interval from poste- 

 rior fin to seminal vesicle, 

 107; in length of ovary, 108; 

 in length of tail, 110; in num- 

 ber of anterior teeth, 113; in 

 number of posterior teeth, 115; 

 ill nnmher of seizing jaws, 118. 



San Diego Region, the Fourth 

 Tasonomic Report on the Co- 

 pepoda of the, 181. 



Sarsia, 307, 316, 317, 319. 



Sayornis nigricans, 5, 19. 

 sayus, 457. 



Scarabaoidac, 427. 



Schizopoda, On Some Califomian, 

 173. 



Schizopoda, bibliography of, 179. 



Scolecithri.x aculeata, 183. 

 elephas, 185. 

 longirostris, 185. 

 mollis, 186. 

 obscura, 184. 



Scolopendra, food of meadowlark, 

 436. 



Scorpions, 484. 



Secondaries, of remiges, 340, 343. 



Sensitivitv of leeches to various 

 stimuli, 221. 



Serum, haemolytic reactions, 48. 



Shaft of remiges, 337; of wing 

 coverts, 344, 345, 346; of rec- 

 trices, 350; of contour feath- 

 ers of trunk, 352. See also 

 Aftershafts. 



Sherrington, C. S., cited, 260. 



Shore-birds, 4, 11, 13. 



Shrike, California, 5, 6, 7, 8, 11, 

 18, 19, 461. 



Sialia mexicana occidentalis, 6. 



Silphidae, 427. 



Siriella anomala, 176. 

 inornata, 175, 176. 

 media, 175, 176. 

 pacifica, description of, 175. 



Smith, Amelia C, cited, 216. 



Smith, H. M., cited, 173. 



Snook, Harry J., 511. 



Solger, B., cited, 144, 



Sow-bugs, food of meadowlark, 

 436. 



Sparrow, English, 5, 6, 8, 11, 18, 

 461. 

 song, 5, 6. 

 western lark, 5, 6, 12. 



Speotvto cunicularia hvpogaea, 5, 

 6, 18. 



Spermatocyte of Aneides lugubris, 

 V-figures, and Y-figures in 

 cells of, 516, 523, 524; horse- 

 shaped loops, 517; polar ori- 

 entation, 517; first maturation 

 division, 518; synapsis, 521. 



Spermatogonia of Aneides lugubris, 

 513, 523, 524. 



Spermatogenesis, amphitene sta^e, 

 516; leptotene stage, 516. 



Sphegidae, 434. 



Sphenophorus, 428. 



Sphingidae, 431. 



Spiders (Arachnida), food of 

 meadowlark, 435. 



Spiraulax, 26, 27. 



St.aphylinidae, 427. 



StMurostoma aretica, 311. 



Stcnopolniatus, 429, 430. 



8tilt, black-necked, 5. 



Stimulation of Dina microstoma, 

 different responses in, to the 

 same contact stimulation, 253- 

 256; determining factors of 

 the different response to t'he 

 same stimulus, 256; intensity 

 of stimulus, 256; localization 

 of stimulus, 257; position of 

 the body, 257; tonus of the 

 organization, 258; chain re- 

 flexes, 259; fatigue from re- 

 peated contact stimuli, 267. 



Stink-bugs, protective character- 

 istics of, 483. 



Stomach contents of birds, 7, 9, 10. 



Structure, The, of the Ocelli of 

 Polyorchis Penicillata, 307. 



Structure and Relationships of Di- 

 iioxjiliiura Piihistiis (Lenun.), 

 On the, 21. 



Strychnine, its influence on Dinu 

 microstoma, 273. 



Sturnella neglecta, 5, 6, 18, 377, 

 400, 457, 476, 490, 491. 



Swallow, barn, 5, 6, 12. 

 cliff, 5. 6, 8, 12, 19, 461. 



Sweet, Clifford D., 29. 



Swimming response in leeches, 211. 



Synapsis of spermatocyte of 

 Aneides lugubris, 521. 



Syngnathus, 144. 



Svncorvne, 321. 



S'vriilui's, fond of mendowlnrk, 434. 



Tadpoles, Behavior of Ectodermic 

 Epithelium of, When Culti- 

 vated in Plasma. 155. 



Tail feathers, 361, 365; of rec- 

 trices, 350. 



[537] 



