Definition: The term "Valettiopsidae" refers to a group of small, flat-bodied invertebrates that belong to the family of the Valtiopidae. These invertebrates are characterized by their body shape and size, which can range from very small to large. Some members of this group may be found on freshwater or saltwater habitats, living in the water column or as part of larger aquatic communities. The family includes a wide variety of species that have adapted to various