. Island life; or, the phenomena and causes of insular faunas and floras, including a revision and attempted solution of the problem of geological climates. rare. Among mammalia the Insectivora offer thebest example of an order, several of whose families inhabitareas more or less isolated from the rest; w hile the Marsupialiahave six families in Australia, and one, the opossums, far off inAmerica. Perhaps, more important is the limitation of some entireorders to certain well-defined portions of the globe. Thus theProboscidea, comprising the single family and genus of theelephants, and the Hyra
. Island life; or, the phenomena and causes of insular faunas and floras, including a revision and attempted solution of the problem of geological climates. rare. Among mammalia the Insectivora offer thebest example of an order, several of whose families inhabitareas more or less isolated from the rest; w hile the Marsupialiahave six families in Australia, and one, the opossums, far off inAmerica. Perhaps, more important is the limitation of some entireorders to certain well-defined portions of the globe. Thus theProboscidea, comprising the single family and genus of theelephants, and the Hyracoidea, that of the Hyrax or Syrianconey, are confined to parts of Africa and Asia; the MarsuiDialsto Australia and America; and the Monotremata, the lowest ofall mammals—comprising the duck-billed Platypus and the ISLAND LIFE. [part I. 30 T. vj +. Aiic;tralia Anions birds the Stmthiones oriS^^:^:^^^^- -the con-Sents South America, Africa and Australia; and amongImpSbia tbe tailed Batrachia-the newts and salamandersiZ similarly restricted to the northern hemisphere. These various facts will receive their explanation in a _^*-^^ .i ,UM^fe|i ;, ^r^%
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Keywords: ., bookauthorwallacealfredrussel18, bookcentury1800, bookdecade1880
