Êëàññ ÐàêîîáðàçíûåÑrustacea
 
Îòðÿä 
ÙÈÒÍÈNotostraca


{Lepidurus apus — http://en.wikipedia.org/wiki/File:LepidurusApus.jpg]







[Triops cancriformis —
http://en.wikipedia.org/wiki/File:Triops_cancriformis2.jpg]


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