an Entity references as follows:
The silver spinyfin (Diretmus argenteus) is a spinyfin of the genus Diretmus, found around the world except the Mediterranean, at depths down to 2,000 m. It belongs to the monotypic genus Diretmus. Their length is between 30 and 40 cm. It has small spiny scales but no lateral line and is a uniform silvery colour, the top of the back being black.