Definition: Gobiiformes is a family of mammals in the order Protheroidea. These animals belong to the genus Gobio and are found primarily in Asia, but also in North America and Europe. They have a long neck, long ears, and a distinctive skull with a large jawbone. Their fur is often thick and black or grayish-brown, with white markings on their faces and ears, as well as an unusual coloration of the skin around their eyes. Gobiiform