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Tyrannobdella
''Tyrannobdella rex'' is a species of leech found in South America in the upper reaches of the Amazon. This newly found genus of leech takes sustenance from the mucous membranes of the mammalian upper respiratory tract, and is known to feed upon humans. It has eight teeth. ''Tyrannobdella rex'' was discovered feeding upon the mucous membrane of a girl who had recently bathed in the upper Amazon in Peru.
Genetic studies show that it is closely related to ''Dinobdella ferox'', a similar species found in Taiwan.
==Characteristics==
Unlike related leeches, ''Tyrannobdella rex'' has a single jaw with one row of teeth. Its eight teeth are disproportionately large, with a length of up to 0.13 mm, which inspired discoverers of the species to use a name reminiscent of ''Tyrannosaurus rex''.〔(【引用サイトリンク】title=The new T. rex: A leech with an affinity for noses )〕 These teeth are about five times as long as those in the related genus ''Limnatis''; most often one will only see six teeth of ''T. rex'' with a microscope as the others are subcutaneous. The closely related leech ''Pintobdella chiapasensis'' features a likewise reduced number of teeth, namely six per jaw, but in turn it has three jaws.
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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