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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Doryteuthis opalescens ： ウィキペディア英語版 Doryteuthis opalescens ''Doryteuthis opalescens'', the opalescent inshore squid is a small squid (mantle length (ML) up to 190 mm) in the family Loliginidae. It is a myopsid squid, which is the near shore group and that means that they have corneas over their eyes. The species lives in the eastern Pacific Ocean from Mexico's Baja California peninsula to Alaska, United States, and as an ''inshore'' squid it can be found with a range of off the shore. ==Description== Adult ''Doryteuthis opalescens'' can reach a total size of 28 cm. Males are typically larger with a mantle length of 13-19 cm, while females are 12-18 cm in mantle length.〔Morris, Robert H., Donald P. Abbott, Eugene R. Haderlie. 1980. ''Intertidal Invertebrates of California''. Stanford: Stanford University Press.〕 The mantle of ''D. opalescens'' is not fused to the head and its body is 4 to 5 times longer than it is wide, with fins equal in both length and width. This squid has 8 arms with 2 longer tentacles ending in tentacular clubs equipped with suckers at their ends. The tentacular clubs are narrow with 4 rows of suckers and 2 large rows in the center of the tentacular club bordered by outer rows of smaller suckers. The 8 arms have only 2 rows of alternating suckers running down their length.〔Kozloff, Eugene N. 1996. ''Marine Invertebrates of the Pacific Northwest''. Seattle: University of Washington Press.〕 In male ''D. opalescens'', the left ventral arm is specialized or “hectocotylized” for spermatophore transfer during mating.〔 The eyes of ''D. opalescens'' are covered with a non-perforated membrane known as a cornea which is a signature of myopsid squid.〔 The color of ''D. opalescens'' can range from white to brown, with the animals able to change their color shades using chromatophores depending on mood and for camouflage. They are normally a bluish-white to mottled brown and gold, and they change to dark red or brown when excited, frightened or feeding.〔 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「Doryteuthis opalescens」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.