INDEX. 



CELEBES, local modifications of 

 form in, 170 ; probable cause of 

 these, 176; remarkable zoolo- 

 gical peculiarities of, 195-199. 



CENTROPUS, sexual colouring and 

 nidification of, 242. 



Ccphalodonta spinipes, 92. 



Ceroxylus laceratus, imitates a 

 moss covered stick, 64. 



CERTHIOLA, sexual colouring and 

 nidification of, 244. 



Cethosia (sole, 172 ; biblis, 172. 



CETONIAD.E, how protected, 73; 

 similar colours of two sexes, 

 114. 



CEYOOPSIS, 196. 



Charis melipona, 96. 



CIIEMATOBIA, wintry colours of this 

 genus, 62. 



Chlamys pilula, resembles dung of 

 caterpillars, 58. 



CIIRYSIDID.E, how protected, 72. 



CHRYSOMELID.E, similar colouring 

 of two sexes, 1 14. 



CICINDELA, adaptive colour of va- 

 rious species of, 57. 



Cilix compressa, resembles bird's 

 dung, 63. 



CLADOBATES, mimicking squirrels, 

 107. 



CLASSIFICATION, form of true, 6; 

 circular, inadmissible, 8 ; quina- 

 rian and circular, of Swainson, 

 46; argument from, against 

 Mr. Dar.win, 295. 



CLIMACTERIS, sexual colouring and 

 nidification of, 243. 



COCCINELLID^E, how protected, 72; 

 similar colouring of sexes, 114. 



COEXISTING varieties, 159. 



Colly r odes lacordairei, 95. 



COLOUR, in animals, popular theo- 

 ries of, 47 ; frequent variations 

 of, in domesticated animals, 48; 

 influenced by need of conceal- 

 ment, 49 ; in deserts, 49, 50 ; 

 in Arctic regions, 50, 51 ; noc- 

 turnal, 51 ; tropical, 52 ; special 

 modifications of, 52 ; different 

 distribution of, in butterflies 

 and moths, 58 ; of autumnal 

 and winter, moths, 62 ; white, 

 generally dangerous and there- 

 fore eliminated, 66 ; why it 

 exists so abundantly although 

 often injurious, 69 ; influenced 

 by need of protection, 113; of 

 female birds, 114; in relation to 

 nidification of birds, 116 ; gaudy 

 colours of many caterpillars, 

 117; in nature, general causes 

 of, 126 ; local variations of, 

 173 ; sexual differences of, in 

 birds, 239 ; in female birds, how 

 connected with their nidifica- 

 tion, 240, 246; more variable 

 than structure or habits, and 

 therefore more easily modified, 

 249 ; of flowers, as explained by 

 Mr. Darwin, 262 ; often corre- 

 lated with disease, 316. 



COMPSOGNATHUS, 300. 



Condylodera tricondyloides, 97. 



CONSCIOUSNESS, origin of, 360; 

 Professor Tyndall on, 361 ; not 

 a product of complex organiza- 

 tion, 365. 



CORRELATION of growth, 310. 



Corynomalus sp., 92. 



COTINGID.E, sexual colouring and 

 nidification of, 244. 



CRATOSOMUS, a hard weevil, 94. 



