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''Scyllarus pygmaeus'' is a species of slipper lobster that lives in shallow water in the Mediterranean Sea and eastern Atlantic Ocean. It grows to a length of , which is too small for it to be fished for. The juvenile form was first described in 1885, with the description of the adult following in 1888 as a result of the ''Challenger'' expedition. ==Description== ''S. pygmaeus'' is the smallest slipper lobster species, with a carapace length of for females, and for males. The total body length can reach , but is typically less than .〔 Its small size precludes ''S. pygmaeus'' from being a target for fisheries.〔 The body of ''S. pygmaeus'' is "pale brownish or pinkish with patches of darker hairs".〔 ''S. pygmaeus'' resembles a young individual of ''Scyllarus arctus'', with which it occurs in sympatry. The two species can be distinguished by a suite of characters:〔 *The anterior part of the abdominal tergites have a groove lined with hairs in ''S. pygmaeus'' but not in ''S. arctus''. *''S. arctus'' has a forward-pointing, pointed tip to the second abdominal sternites, while in ''S. pygmaeus'' it is rounded and points backwards. *''S. pygmaeus'' has a conical tubercle on the fifth thoracic somite, while the tubercle is compressed rather than conical in ''S. arctus''. *The sculptured posterior part of the first abdominal somite is wider in the centre than at the edges in ''S. pygmaeus'', while in ''S. arctus'' it is an even width throughout. 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「Scyllarus pygmaeus」の詳細全文を読む スポンサード リンク
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