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''Ursus'' is a genus in the family Ursidae (bears) that includes the widely distributed brown bears,〔http://library.sandiegozoo.org/factsheets/brown_bear/brown_bear.html〕 the polar bear,〔http://library.sandiegozoo.org/factsheets/polar_bear/polar.htm〕 and black bears. The name is derived from the Latin ''ursus'', meaning ''bear''.〔http://www.merriam-webster.com/dictionary/ursus〕〔http://dictionary.reference.com/browse/ursus〕 ==Species and subspecies of ''Ursus''== * † ''Ursus abstrusus'' * American black bear, ''Ursus americanus'' * * ''U. a. altifrontalis'' - Olympic black bear * * ''U. a. amblyceps'' - New Mexico black bear * * ''U. a. americanus'' eastern black bear * * ''U. a. californiensis'' - California black bear * * ''U. a. carlottae'' - Haida Gwaii black bear or Queen Charlotte black bear * * ''U. a. cinnamomum'' - cinnamon bear * * ''U. a. emmonsii'' - glacier bear * * ''U. a. eremicus'' - Mexican black bear * * ''U. a. floridanus'' - Florida black bear * * ''U. a. hamiltoni'' - Newfoundland black bear * * ''U. a. kermodei'' - Kermode bear or spirit bear * * ''U. a. luteolus'' - Louisiana black bear * * ''U. a. machetes'' - West Mexico black bear * * ''U. a. perniger'' - Kenai black bear * * ''U. a. pugnax'' - Dall black bear * * ''U. a. vancouveri'' - Vancouver Island black bear * Brown bear, ''Ursus arctos'' * * ''U. a. arctos'' - European brown bear * * ''U. a. alascensis'' - Alaskan brown bear * * ''U. a. collaris'' - East Siberian brown bear * * ''U. a. beringianus'' - Kamchatka brown bear * * †''U. a. crowtheri'' - Atlas bear, (extinct) * * †''U. a. dalli'' - Dall brown bear (possibly extinct?) * * ''U. a. gobiensis'' - Gobi bear, * * ''U. a. horribilis'' - grizzly bear * * ''U. a. isabellinus'' - Himalayan brown bear * * ''U. a. lasiotus'' - Ussuri brown bear * * ''U. a. middendorffi'' - Kodiak bear * * ''U. a. nelsoni'' - Mexican grizzly bear (extinct?) * * ''U. a. piscator'' - Bergman's bear (extinct?) * * ''U. a. pruinosus'' - Tibetan blue bear * * ''U. a. sitkensis'' - Sitka brown bear * * ''U. a. syriacus'' - Syrian brown bear * † ''Ursus arvernensis'' * † Deninger's bear, ''Ursus deningeri'' * † Etruscan bear, ''Ursus etruscus'' * † Gamssulzen cave bear, ''Ursus ingressus'' * † MacFarlane's bear, ''Ursus inopinatus'' (cryptid; if an authentic species, extinct) * † Pleistocene small cave bear, ''Ursus rossicus'' * † ''Ursus sackdillingensis'' * Polar bear, ''Ursus maritimus'' (earlier ''Thalarctos maritimus'') * * ''U. m. maritimus'' - (no common name, classification contested) * * ''U. m. marinus'' - Siberian polar bear (classification contested) * * † ''U. m. tyrannus'' Pleistocene polar bear * † Auvergne bear, ''Ursus minimus'' * † Cave bear, ''Ursus spelaeus'' * Asian black bear, ''Ursus thibetanus'' * * ''U. t. formosanus'' - Formosan black bear, * * ''U. t. gedrosianus'' - Baluchistan bear or Pakistan black bear * * ''U. t. japonica'' - Japanese black bear * * ''U. t. laniger'' - Himalayan black bear * * ''U. t. mupinensis'' - Indochinese black bear * * ''U. t. thibetanus'' - Tibetan black bear * * ''U. t. ussuricus'' - Ussuri black bear A hybrid between grizzly bears and polar bears has also been recorded. Known commonly as a pizzly, prizzly, or grolar bear, the official name is simply "grizzly–polar bear hybrid". 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「Ursus (genus)」の詳細全文を読む スポンサード リンク
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