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Dysdera
''Dysdera'' is a genus of spiders from the family Dysderidae, with more than 200 species. They occur mostly in Eurasia from Central Asia to Spain, extending into northern Africa (e.g. Morocco, Egypt, Ethiopia). However, at least two species occur in South America (''D. solers'' in Colombia (possibly a relict species from the post-miocene era) and ''D. magna'' in Brazil and Uruguay, they are also very common in the central area of Chile), and several species are found on smaller islands, like the Canary Islands. ''D. crocata'' is the only cosmopolitan species of the whole family. ==Description== These mostly Mediterranean spiders are primarily nocturnal running hunter spiders. They spend the day in silk cocoons under stones or bark. Some species always live in caves, others do so from time to time. ''D. unguimannis'' is considered the most remarkable case of troglomorphism (adaptation to cave life) in the ''Dysdera'' genus.
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「Dysdera」の詳細全文を読む
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