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
Upper West Side increasingly referred to as Lincoln Square by realtors who acknowledge a different tone and ambiance than that typically associated with the Upper West Side. This is a reversion to the neighborhood's historical name. The long high bluff above useful sandy coves along the North River was little used or traversed by the Lenape people. A combination of the stream valleys, such as that in which 96th Street runs, and wetlands to the northeast and east, may have protected a portion of the Upper West Side from the Lenape's controlled burns; lack of periodic ground fires results in a denser understory