Bagrichthys
...that Bagrichthys macracanthus, the black lancer, is the only species of Bagrichthys, a genus of catfishes, that is traded in the aquarium hobby?
...that <i id="mwCho">Bagrichthys macracanthus</i>, the black lancer, is the only <a href="./Species" id="mwChs" rel="mw:WikiLink" title="Species">species</a> of <i id="mwChw"><b id="mwCh0"><a href="./Bagrichthys" id="mwCh4" rel="mw:WikiLink" title="Bagrichthys">Bagrichthys</a></b></i>, a <a href="./Genus" id="mwCh8" rel="mw:WikiLink" title="Genus">genus</a> of <a href="./Catfish" id="mwCiA" rel="mw:WikiLink" title="Catfish">catfishes</a>, that is traded in the <a href="./Aquarium" id="mwCiE" rel="mw:WikiLink" title="Aquarium">aquarium</a> <a href="./Hobby" id="mwCiI" rel="mw:WikiLink" title="Hobby">hobby</a>?