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Potamon ibericum : ウィキペディア英語版 | Potamon ibericum
''Potamon ibericum'' is a Eurasian species of freshwater crab. It is an omnivore that feeds on land, but returns regularly to the water, and can survive short periods of drought in burrows and under stones. Its natural range stretches from north-eastern Greece, around both sides of the Black Sea and to beyond the Caspian Sea; populations have also been introduced to southern France. It is included as a near threatened species on the IUCN Red List, and is included in the ''Red Data Book'' for Ukraine. ==Description== ''Potamon ibericum'' differs from other species in the genus in the form of the first pleopod of the males – the organ used to transfer spermatophores. In ''P. ibericum'', the flexible zone of this appendage is widest near the middle, rather than V-shaped (as in ''P. fluviatile'' and ''P. rhodium'') or bilobed (as in ''P. potamios'').〔
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「Potamon ibericum」の詳細全文を読む
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