... Merganetta armata (torrent duck) is one species, with six known subspecies. (4) Somateriini This group breeds in the far north of the Northern Hemisphere, with four known species, and two species, the common eider (illustration) and the common eider, recorded in Japan. (5) Aythyini A typical diving duck, so named because of the white stripes on its wings. ... *Some of the terminology explanations that mention "Somateriini" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…ヤマガモMerganetta armata(英名torrent duck)1種よりなり,6亜種が知られている。(4)ケワタガモ類Somateriini北半球の極北地域に繁殖するグループで4種が知られており,日本ではケワタガモ(イラスト)とコケワタガモの2種が記録されている。(5)ハジロガモ類Aythyini代表的な潜水採餌ガモで,翼に白色帯が出ることからこの名がある。… ※「Somateriini」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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