METIIOCA. 
INDEX. 
MONSTROSITIES. 
447 
Methoca ichneumonides, large male of, 
i. 347. 
Meves, M., on the drumming of the 
snipe, ii. 63. 
Mexicans, civilisation of the, not 
foreign, i. 183. 
Meyer, on a convoluted body at the 
extremity of the tail in a Macacus 
and a cat, i. 30. 
Meyer, Dr. A., on the copulation of 
phryganidse of distinct species, i, 
342. 
Migrations of man, effects of, i. 135. 
Migratory instinct of birds, i. 79; 
vanquishing the maternal, i. 83, 90. 
Mill, J. S., on the origin of the moral 
sense, i. 71 ; on the “ greatest hap- 
piness principle,” i. 97 ; on the dif- 
ference of the men t,;il powers in the 
sexes of man, ii. 328. 
Millipedes, i. 339. 
Mi lne-Ed wards. H., on the use of 
the enlarged chela of the male Ge~ 
lasiinus , i. 331. 
Milvaqo leucurus , sexes and young of, 
ii. 205. 
Mimickry, i. 411. 
Mimus potuglottus, ii. 109. 
Mind, difference of, in man and the 
highest animals, i. 104; similarity 
of the, in different races, i. 232. 
Minnow, proportion of the sexes in 
the, i. 308, 309. 
Minnows, spawning habits of, ii. 15. 
Mirror, larks attracted by, ii. 112. 
Mivart, St. George, on the reduction 
of organs, i. 18; on the ears of the 
lemuroidea, i. 25; on variability of 
the muscles in lemuroidea, i. 128, 
13G ; on the caudal vertebr.e ot 
monkevs, i. 150; on the classifica- 
tion of the primates, i. 196 ; on the I 
orang and on man, i. 197 ; on dif- ] 
ferences in the lemuroidea, i. 198 ; J 
on the crest of the male newt, ii. 24. | 
Mocking-thrush, partial migration 
of, ii. 109; young of the, ii- 219.^ 
Modifications, unserviceable, i. 153. 
Moles, numerical proportion of the 
sexes in, i. 305 ; battles ol male, ii. 
239. 
Mollienesia petenensis , sexual differ- 
ence in, ii. 9. 
Mollusca, beautiful colours and 
shapes of, i. 326 ; absence of secon- 
dary sexual characters in the, i. 
324. 
Molluscoipa, i. 205, 324. 
Monacanthus scopas and M. Peronii , 
sexual differences in, ii. 12. 
Mongolians, perfection of the senses 
in, i. 119. 
Monkey, protecting his keeper from 
a baboon, i. 78, 87; bonnet.-, i. 192 ; 
rhesus, sexual difference in colour 
of the, ii. 293, 310 ; moustache-, 
colours of the, ii. 291, 
Monkeys, liability of, to the same 
diseases as man, i. 11 ; male, recog- 
nition of women by, i. 13 ; revenge 
taken by, i. 40 ; maternal affection 
in, i. 40 ; variability of t.he faculty 
of attention in, i. 44 ; using stones 
and sticks, i. 51 ; imitative faculties 
of, i. 56 ; signal-cries of, i. 57 ; sen- 
tinels posted by, i. 74; diversity of 
the mental faculties in. i. 110; 
mutual kindnesses of, i. 75; hands 
of the, i. 139, 140 ; breaking hard 
fruits with stones, i. 140; basal 
caudal vertebrae of, imbedded in the 
body, i. 151 ; human characters of, 
i. 191; gradation of species of, 
i. 227 ; beards of, ii. 283 ; orna- 
mental characters of, ii, 306 ; ana- 
logy of sexual differences of, with 
those of man, ii. 318; different 
degrees of difference in the sexes of, 
ii. 323 ; expression of emotions by, 
ii. 336; generally monogamous 
habits ol, ii. 361 ; polygamous 
habits of some, ii. 362 ; naked sur- 
faces of, ii. 376; American, mani- 
festation of reason in, i. 47; Ameri- 
can, direction of the hair on the 
arms of some, i. 192. 
Monogamy, not primitive, i. 182. 
Monog exists, i. 228. 
Mononychus pseudo, cori, stridulation 
of, i. 382. 
Monotremata, i. 202; development 
of the nictitating membrane in, 
i. 23 ; lactiferous glands of, i. 209 ; 
connecting mammals with reptiles, 
i. 213. 
Monstrosities, analogous, in man 
and lower animals, i. 113; caused 
by arrest of development, i. 121 ; 
