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Lysmata amboinensis
''Lysmata amboinensis'', the northern cleaner shrimp, scarlet cleaner shrimp, skunk cleaner shrimp or Pacific cleaner shrimp, is an omnivorous shrimp species, which will generally scavenge and eat parasites and dead tissue. ''L. amboinensis'' is naturally part of the reef ecosystem, and is widespread in the Red Sea and tropical Indo-Pacific.〔(【引用サイトリンク】title=Cleaner Shrimps, Family Hippolytidae )〕
''Lysmata amboinesis'' hatches from eggs and goes through an incomplete metamorphosis at 5–6 months of age.〔(【引用サイトリンク】title=Pacific Cleaner Shrimp (''Lysmata amboinensis'') )〕 After their metamorphosis they will moult every 3–8 weeks. Each shrimp starts out as a male, but after a few moults will become a hermaphrodite and will function as both male and female. They will lay from 200–500 eggs in one spawning. Eggs appear on the hermaphroditic shrimps' pleopods and are greenish in colour; they swell and lighten in colour before hatching and a few will turn silver on the day of hatching. The eggs tend to hatch around dusk.
It has been observed that fish with parasites may come to "cleaning stations" in the reef. Certain species of fish and several types of cleaner shrimp may assist the fish in large numbers and even go inside the mouth (and then to the gill cavity) without being eaten.
Many species of ''Lysmata'', including ''L. amboinesis'', are safe and beneficial in salt water tanks since they will (as indicated by their common name) clean both the tank and occasionally other fish within the tank.〔(【引用サイトリンク】title=''Lysmata amboinensis'' )〕
==References==
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「Lysmata amboinensis」の詳細全文を読む
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