Changes

Serpenoid opens with a head popping up and a tail going downward. The tip of the tail touches the bottom of the head when closed. When opened, a small part of the tail detaches itself, creating an extension of the tail.

===Availability===

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|-|Pyrus={| align=center class=sortable cellspacing="1" cellpadding="1" border="1" style="text-align: left; width: 100%; margin: 0 auto; border-collapse: collapse; "