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''Xerospermophilus'' is a genus of ground squirrels in the family Sciuridae, containing four species. The members of this genus were formerly placed in the large ground squirrel genus ''Spermophilus''. Since DNA sequencing of the cytochrome ''b'' gene has shown ''Spermophilus'' to be paraphyletic to the prairie dogs and marmots, this group is now separated, along with six other genera.〔 Within the genus, the Mohave ground squirrel and the round-tailed ground squirrel were thought to be close relatives, sometimes a subgenus ''Xerospermophilus'', while the spotted ground squirrel and the Perote ground squirrel were placed in the subgenus (now a genus) ''Ictidomys''. The name of the genus is a combination of the Greek word ''xeros'', "dry", and ''Spermophilus'', which also comes from Greek, meaning "seed lovers".〔 == Species == The four species in ''Xerospermophilus'' are listed below. These are the same species that were previously grouped in the subgenus ''Otospermophilus''.〔 * Mohave ground squirrel, ''Xerospermophilus mohavensis'' * Round-tailed ground squirrel, ''Xerospermophilus tereticaudus'' * Spotted ground squirrel, ''Xerospermophilus spilosoma'' * Perote ground squirrel, ''Xerospermophilus perotensis'' 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Xerospermophilus」の詳細全文を読む スポンサード リンク
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