676 



SEMXOPITIIECUS. 



INDEX. 



Semnopithecus nasica, nose of, 150. 



nemcEns, colouring of, 551, 



rubicundus, ornamental iiair ou 



the head of, 548. 

 Senses, infei.ority of Europeans tc 



savages in tlie, 33. 

 Sentinels, among animals. 100, 107. 

 Serpents, instinctively di-eaded by 



apes and monkeys, 67, 71. 

 Serranus, hermaphroditism in, 161. 

 Sex, inheritance limited by, 230. 

 Sexes, relative proportions of, in man, 



242, 558 ; probable relation of the, 



in primeval man, 591. 

 Sexual characters, secondary, 207 ; 



relations of polygamy to, 217 ; 



transmitted through both sexes, 



226; gradation of, in birds, 430. 



and natural selection, con- 

 trasted, 226. 



characters, effects of the loss of 



231 ; limitation of, 231. 



differences in man, 8. 



selection, explanation of, 209, 



213, 220; influence of, on the 

 colouring of Lepidoptera, 319 ; ob- 

 jections to, 495 ; action of, in man- 

 kind, 595. 



'- similarity, 255. 



Shaler, Prof., sizes of sexes in whales, 

 516. 



Sharks, prehensile organs of male, 

 331. 



Sharpe, Dr., Europeans in the tropics, 

 195. 



, R. B., on Tanysiptera sylvia, 



451 ; on Ceryle^ 457 ; on the young 

 male of Dacelo GaurUchmdi, 467. 



Shaw, Mr., on the pugnacity of the 

 male salmon, 332. 



, J., on the decorations of birds, 



382. 



Sheep, danger-signals of, 100 ; sexual 

 diffsrent:es in the horns of, 230 ; 

 horns of, 235, 505 ; domestic, sexual 

 dilferences of, late developed, 237 ; 

 numerical proportion of the sexes 

 in, 246 ; inheritance of horns by 

 one sex, 505 ; effect of castration, 

 506; mode of fighting of, 508; 

 arched foreheads of some, 532. 



— ■ Merino, loss of horns in females 

 of, 231 ; horns of, 235. 



Shells, difference in form of, in male 

 and female Gasteropoda, 262 , 



beautiful colours and .jhapes of, 

 264. 

 Shield-drake, pairing with a coramou 

 duck, 414; New Zealand, sexes and 

 young of, 479. 

 Shooter, J., on the Kaflii-s, 579 ; od 

 the marriage-customs of the Kad^ia, 

 598. 

 Shrew-mice, odour of, 528. 

 Shrike, Drongo, 461. 

 Shrikes, characters of young, 465. 

 Shnckard, W. E., on sexual differ- 

 ences in the wings of Hymenoptera, 

 277. 

 Shyness of adorned male birds, 403. 

 Siagoniunij proportions of the sexei- 

 in, 253; dimorphism in males of, 

 299. 

 Siam, proportion of male and female 



births iu, 245. 

 Siamese, general beardlessness of the. 

 560 ; notions of beauty of the, 578 ; 

 hairy family of, 601. 

 Sidgwick, H., on moi'ality in hypo- 

 thetical bee community, 99 ; our 

 actions not entirely directed by 

 pain and pleasure, 120. 

 Siebold, C. T. von, on the proportion 

 of sexes in the Apus, 255; on the 

 auditory apparatus of the stridu- 

 lant Orthoptera, 283. 

 Sight, inheritance of long and short, 



33. 

 Signal-cries of monkeys, 87. 

 Silk-moth, proportion of the sexes 

 in, 250, 251; Ailanthus, Prof. 

 Cauestrini, on the destruction of 

 its larvae by wasps, 251; differ- 

 ence of size of the male and fe- 

 male cocoons of the, 278; pairing 

 of the, 318. 

 Simiadai, 152; their origin and divi- 

 sions, 165. 

 Similarity, sexual, 225. 

 Singing of the Cicad* and Fulgoridas, 

 281 ; of tree-frogs, 350 ; of birds. 

 object of the, 368. 

 Sirenia, nakedness of, 56, 

 Sirex juvencuSf 292. 

 SiricidEB, difference of the sexes .n, 



292. 

 Siskin, 394; pairing with a canary, 



415. 

 Sit&na, throat-pouch of tho males of, 

 355, 358. 



