A large sturgeon (Acipenser huso syn. Huso huso) from the region of the Black Sea; also called Beluga. It is sometimes twelve feet long, and provides the highest quality caviar.

valuable source of caviar and isinglass; found in Black and Caspian seas

Hausen is a large lunar impact crater that lies along the south-southwestern limb of the Moon. The visibility of this crater is significantly affected by libration effects, although even under the best of conditions it is viewed nearly from on edge. It lies along the western edge of the immense Bailly walled-plain.