mangrove jingle shell
... that the mangrove jingle shell has two different colour varieties, but pale specimens normally found on mangrove leaves can darken when moved to the tree's bark?
... that the <b id="mwyQ"><a href="./Enigmonia" id="mwyg" rel="mw:WikiLink" title="Enigmonia">mangrove jingle shell</a></b> has two different <a href="./Polymorphism_(biology)" id="mwyw" rel="mw:WikiLink" title="Polymorphism (biology)">colour varieties</a>, but pale specimens normally found on <a href="./Mangrove" id="mwzA" rel="mw:WikiLink" title="Mangrove">mangrove</a> leaves can darken when moved to the tree<span about="#mwt15" class="nowrap" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;'s&quot;,&quot;href&quot;:&quot;./Template:'s&quot;},&quot;params&quot;:{},&quot;i&quot;:0}}]}" id="mwzQ" style="padding-left:0.1em;" typeof="mw:Transclusion"><span typeof="mw:Entity">'</span>s</span> bark?