Address of A. R. Wallace at the Glasgow Meeting. 361 
assing to the West Indian Islands and Central America 
(which latter country has formed a group of islands in ver 
recent times), we have similar indications. One of the largest 
of the Papilios inhabits Jamaica,* while another, the largest of 
its group, is found in Mexico.¢ Cuba has two of the same fine 
genus, whose colors are of surpassing brilliancy ;t while the 
genus Clothilda—confined to the Antilles and Central Ameriva— 
America we might have raccoons, squirrels, and opossums in 
le the skunk of the same country ; while in South America 
they might be black, with a yellow throat patch, so as to re- 
semble with equal closeness the tayra of the Brazilian forests. 
Were such resemblances to occur in anything like the number, 
and with the wonderful accuracy of imitation met with among 
the Lepidoptera, they would certainly attract universal atten- 
hon among naturalists, and would lead to the exhaustive study 
valu influence of local causes in producing such startling re- 
uits, 
we have imagined; but as the Aard-wolf and the hyzna-dog 
are both weak ‘animals compared with the hyena, ptbmcnd 
blance may be useful, and in that case would come under the 
head of mimicry. This seems the more probable groaning 
4 rule, the colors of the Mammalia are protective, and are too 
little varied to allow of the influence of local causes producing 
any well-marked effects. i 
en we come to the birds, however, the case is different ; for 
although th ey do not exhibit such distinct marks of the influ- 
*nee of locality as do butterflies—probably because the caukes 
* Papilio Homerus, + P. daunus. Eee 
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