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The L-number system is a pseudo-scientific classification system of catfish based on photographs of shipments of tropical catfish of the family Loricariidae published by the German aquarium magazine DATZ (Die Aquarien- und Terrarienzeitschrift (The Aquarium and Terrarium Magazine)). The first L-number was published in 1988. An L-number is not a formal scientific designation, but it does allow people to identify various loricariid catfish by a "common name" before the fish is actually officially described. When a loricariid receives an official scientific name, the L-number (or numbers) is retired.〔(【引用サイトリンク】title=What are L Numbers? )〕 and best practice is then to use the scientific name. A specific L-number classification does not guarantee a discrete species, multiple L numbers have been given to different populations of the same species. To add to the confusion, sometimes a single L-number may actually be used for multiple species. Additionally the aquarium magazine 'Das Aquarium' introduced a similar system using the prefix 'LDA'. == L-number catfish articles == The L-numbers are listed below in numerical order.〔(【引用サイトリンク】title=Cat-eLog::All l-numbers )〕 The preceding number holds precedence over the higher or "alternative" L-numbers; but can sometimes be used to describe the same species or type from another locality. 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「L-number」の詳細全文を読む スポンサード リンク
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