INDEX. 



629 



Crocodilia, 347. 



Crossbills, characters of young, 



459. 

 Crosses in man, 169. 

 Crossing of races, effects of the, 



187. 

 Crossoptilon auritum, 395, 446, 466; 

 adornment of both sexes of, 230; 

 sexes alike in, 454. 

 crotch, G. R., on the stridulation 

 of beetles, 299, 301; on the strid- 

 ulation of Heliopathes, 302; on 

 the stridulation of Acalles, 303; 

 habit of female deer at breeding 

 time, 499. 

 Crow Indians, long hair of the, 

 574. 



, young of the, 475. 



Crows, 487; vocal organs of the, 

 366; living in triplets, 404. 



, carrion, new mates found 



by, 402. 



, Indian, feeding their blind 



companions, 99. 

 Cruelty of savages to animals, 



114. 

 Crustacea, parasitic, loss of limbs 

 by female, 204; prehensile feet 

 and antenna of, 205; male, more 

 active than female, 217; parthen- 

 ogenesis in, 251; secondary sex- 

 ual characters of, 262; amphipod, 

 males sexually mature while 

 young, 479; auditory hairs of, 

 563. 

 Crystal worn in the lower lip by 

 some Central African women, 

 570. 

 Cuckoo fowls, 233. 

 CulicidsB, 204, 278; attracted by 



each other's humming, 278. 

 CuUen, Dr., on the throat-pouch 



of the male bustard, 368. 

 Cultivation of plants, probable 



origin of, 130. 

 Cupples, Mr., on the numerical 

 proportion of the sexes in dogs, 

 sheep, and cattle, 241; on the 

 Scotch deerhound, 612; on sex- 

 ual preference in dogs, 520. 

 Curculionidae, sexual difference in 

 length of snout in some, 204; 

 hornlike processes in male, 296; 

 musical, 298, 299. 

 Curiosity, manifestations of, by 



animals, 69. 

 Curlews, double moult in, 385. 

 Cursores, comparative absence of 

 sexual differences among the, 

 215. 

 Curtis, J., on the proportion of 



the sexes in Athalia, 250. 

 Cuvier, F., on the recognition of 

 women by male quadrumana, 8. 

 . J G., on the number of cau- 

 dal ' vertebrse in the mandrill, 

 56- on instinct and intelligence, 

 65- views of, as to the position 

 of' man, 145; on the position of 

 the seals, 146; on Hectocotyle, 

 260. 



41 



Cyanecula suecica, sexual differ- 

 ences of, 466. 



Cyanalcyon, sexual difference in 

 colors of, 451; immature plu- 

 mage of, 461. 



Cychrus, sounds produced by, 301. 



Cycnia mendica, sexual difference 

 of, in color, 312. 



Cygnus ferus, trachea of, 369. 



olor, white young of, 477. 



Cyllo Leda, instability of the ocel- 

 lated spots of, 422. 



Cynanthus, variation in the gen- 

 us, 417. 



Cynipidse, proportions of the 

 sexes in, 250. 



Cynocephalus, difference of the 

 young from the adult, 8; male, 

 recognition of women by, 8; 

 polygamous habits of species of, 

 213. 



chacma, 68. 



■ ■ gelada, 79. 



hamadryas, 79, 585; sexual 



difference of color in, 533. 



leucophseus, colors of the 



sexes of, 534. 



mormon, colors of the male, 



534, 536, 545. 



porcarius, mane of the male, 



517. 



Cypridina, proportions of the 

 sexes in, 251. 



Cyprinidas, proportion of the 

 sexes in the, 245. 



, Indian, 339. 



Cyprinodontidse, sexual differ- 

 ences in the, 332, 334. 



Cyprinus auratus, 339. 



Cypris, relations of the sexes in, 

 251. 



Cyrtodaotylus rubidus, 350. 



Cystophora cristata, hood of, 523. 



D 



Dacelo, sexual difterenoe of color 



in, 451. 

 Gaudichaudi, young male of, 



462. 

 Dal-ripa, a kind of ptarmigan, 



243. 

 Damalis albifrons, peculiar mark- 

 ings of, 539. 

 pygarga, peculiar markings 



of, 538. 

 Dampness of climate, supposed 



influence of, on the color of the 



skin, 31, 188. 

 DanaidEe, 305. 

 Dances of birds, 377. 

 Dancing, universality of, 174. 

 Daniell, Dr., his experience of 



residence in West Africa, 190. 

 Darfur, protuberances artificially 



produced by natives of, 569. 

 Darwin, F., on the stridulation of 



Dermestes murinus, 299. 



