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The genus ''Synaptomys'' is a group of North American lemmings. These animals live in wet forested and open areas. They are small round rodents with large heads, short ears, legs and tails. They eat green vegetation such as grasses and sedges. They are often found in colonies. Extant species include: *Northern bog lemming (''Synaptomys borealis'' Richardson, 1828)〔(【引用サイトリンク】url=http://www.mnh.si.edu/mna/image_info.cfm?species_id=375 )〕 *Southern bog lemming (''S. cooperi'' Baird 1858)〔(【引用サイトリンク】url=http://www.mnh.si.edu/mna/image_info.cfm?species_id=374 )〕〔(【引用サイトリンク】url=http://paleodb.org/cgi-bin/bridge.pl?a=basicTaxonInfo&taxon_no=41881 )〕 Extinct species include: *Anza bog lemming (''S. anzaensis'' Zakrzewski 1972) *Florida bog lemming (''S. australis'' Simpson 1928)〔〔 *Bunker's bog lemming (''S. bunkeri'' Hibbard 1939)〔〔 *European bog lemming (''S. europeaus'' Kowalski)〔 *Kansas bog lemming (''S. kansasensis'' Hibbard 1952)〔 *Landes's bog leming (''S. landesi'' Hibbard 1954)〔 *Melron's bog lemming (''S. meltoni'' Paulson 1961)〔 *Morgan's bog lemming (''S. morgani'' Martin et al. 2003)〔 *Rinker's bog lemming (''S. rinkeri'' Hibbard 1956)〔 *Old bog lemming (''S. vetus'' Wison 1933)〔 ==References== 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「bog lemming」の詳細全文を読む スポンサード リンク
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