...borne by four branchial arches, and the fifth arch is gillless...

A whole salonful of artographers!

An American traveler, let us say, lands at Calais with a pocket full of American money; his purse may fairly bulge. But he cannot buy so much as a newspaper or a breakfast roll with it. As far as his ability to purchase the very necessities of life is concerned, he might as well be penniless. His American money is worthless to him on that other shore until he has exchanged it for the coin of the realm.

Coordinate term: shutout