Boglet

In and out of the tufts they went, with their eyes dilating; wishing to be out of harm, if conscience were but satisfied. And of this tufty flaggy ground, pocked with bogs and boglets, one especial nature is that it will not hold impressions.

The practical Martha was in fact advancing with an improvised leaping-pole that had already carried her neatly over the brook and would obviously bring Bundock over the boglet.

Goodfellow and the vampire had dropped us off in the limo at the park's south entrance. […] I was again smacking the claws of the boglet above me. […] They ate muggers and joggers. […] "Don't make me shoot off the end of your tail."