Flatfish entire order was John Roxborough Norman's "Monograph of the Flatfishes" published in 1934. New species are described with some regularity and undescribed species likely remain. Hybrids are well known in flatfishes. The Pleuronectidae, of marine fishes, have the largest number of reported hybrids. Two of the most famous intergeneric hybrids are between the European plaice ("Pleuronectes platessa") and European flounder ("Platichthys flesus") in the Baltic Sea, and between the English sole ("Parophrys vetulus") and starry flounder ("Platichthys stellatus") in Puget Sound. The offspring of the latter species pair is popularly known as the hybrid sole and was initially believed to
Sole (fish) Sole (fish) Sole is a fish belonging to several families. Generally speaking, they are members of the family Soleidae, but, outside Europe, the name "sole" is also applied to various other similar flatfish, especially other members of the sole suborder Soleoidei as well as members of the flounder family. In European cookery, there are several species which may be considered "true soles", but the common or Dover sole "Solea solea", often simply called "the sole", is the most esteemed and most widely available. The word "sole" in English, سول پیس in Urdu, French and Italian comes from its resemblance to