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Tanymastix stagnalis : ウィキペディア英語版 | Tanymastix stagnalis
''Tanymastix stagnalis'' is a species of Anostraca (fairy shrimp) that lives in temporary pools across Europe. It may reach up to in some areas and has 11 pairs of bristly, flattened appendages. It swims upside-down and filters food particles from the water. It is the only species of Anostraca in Ireland, having been discovered in Rahasane turlough in 1974. ==Description== The body of ''Tanymastix stagnalis'' has a pair of stalked eyes, and 11 pairs of thoracic appendages, called ''phyllopodia''. The abdomen bears no appendages, but does carry the genital structures, which in the male are a pair of retractable hemipenes, while the female has a brood pouch with two spines. The antennae are also sexually dimorphic, being prehensile in males. At the end of the abdomen, a caudal furca is made up of two red ''cercopods'',〔 which are long, thin and setose.〔 Reports of the size of ''Tanymastix stagnalis'' vary. In Spain, it is reported to reach lengths of , while Macedonian examples reach , and French specimens have been reported as long as . ''T. stagnalis'' can be most easy distinguished from other species in the order by the form of the males' antennae and frontal appendages.〔
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「Tanymastix stagnalis」の詳細全文を読む
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