Astacoides
... that crayfish of the Madagascan genus Astacoides have fewer gills than any other crayfish?
... that <a href="./Crayfish" id="mwEM8" rel="mw:WikiLink" title="Crayfish">crayfish</a> of the <a href="./Madagascar" id="mwENA" rel="mw:WikiLink" title="Madagascar">Madagascan</a> genus <i id="mwENE"><b id="mwENI"><a href="./Astacoides" id="mwENM" rel="mw:WikiLink" title="Astacoides">Astacoides</a></b></i> have fewer <a href="./Gill" id="mwENQ" rel="mw:WikiLink" title="Gill">gills</a> than any other crayfish?