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Lesser pipefish
The Lesser pipefish or Nilsson's pipefish, ''Syngnathus rostellatus'', is a pipefish similar to the greater pipefish, but with no crest above the head. Usually it reaches up to in length, maximally , although in South Wales they are usually not more than long. They have a light to dark green-brown colour with bar-like markings on the sides (compare the greater pipefish). Lesser pipefish are found all around the British Isles and as far as the French coast .〔(【引用サイトリンク】title=Recognising Pipefish )〕
==Anatomy==
The head has a long, thin, round snout with a small up-turned mouth; the eyes are small and situated well back towards the gill covers; The body is long and thin, covered with bony plates; the dorsal fin situates halfway along the body, and pelvic fins are found below this. The caudal fin is shaped like a fan, and small pectoral fins are situated behind the gills. The lesser and greater pipefish species differ because one has a crest on the head while one doesn't .〔(Lesser Pipefish )〕 However, they are still quite similar: a fully grown lesser pipefish and a young greater pipefish share similar coloration and markings and they both have a caudal fin and swim in a similar style. One distinguishing feature of the lesser pipefish is a continuous black line from the gills down the belly to the tail, although this not very apparent on very young specimens.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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