…The small shellfish, the water snail, and the water crab, are related species that are widely distributed from Kamchatka to Hokkaido, but have quietly remained in the deep bottom of Lake Biwa. The crustaceans that are problematic are the crustaceans, the prawns, and the related or similar species, which are distributed only in the coastal areas of northern seas. This distribution poses a delicate problem, since current geological knowledge suggests that Lake Biwa has never been directly connected to the sea. … *Some of the terminology that refers to the Annandale gammarid shrimp is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…小型貝類のミジンマメタニシやミズシタダミは,近縁種がカムチャツカから北海道までの各地に広く分布したものが,琵琶湖の深底にひっそりと残ったものである。問題のあるのは甲殻類のカマカヨコエビやアナンデールヨコエビで,これの近縁種あるいは同種のものは北方海域の沿岸部だけに分布している。現在までの地質上の知見では,琵琶湖が海と直接連なったことはないとされているから,この分布は微妙な問題を提供する。… ※「アナンデールヨコエビ」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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