The omphoth was an animal native to the planet Athet. It resembled nothing so much as a Brachiosaurus with the trunk and tusks of an elephant, although the trunk was an extended lower lip rather than a nose.
Jennifer Logan bought a statue of an omphoth from Gazar, an Atheter merchant. It was made from the ivory of a real omphoth. As that particular species, which once dominated his region of the planet, had been extinct for 1000 or so years, Gazar explained, with smug satisfaction, that the artifact's irreplaceability made the price go up.