...sub-regions. In position they form an unbroken chain uniting North and South America, in a line parallel to the great Central American isthmus; yet instead...these countries, possessing in some groups a degree of specialty only to bo found elsewhere in islands far removed from any continent. They consist of two...

...I>r. Wallace, the Antilles form an unbroken Hiiiin uniting North and South America, in a line parallel to the great Central American isthmus. Yet instead...from both these countries, possessing in some groups :i degree of speciality only to be found elsewhere in islands far removed from any continent." Several...