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
Eclecta aurorella by a slender white line. There is an irregularly triangular dark reddish-fuscous blotch, more ochreous-fuscous beneath, on the hindmargin, its apex extending to the disc at three-fifths from the base, its base extending from above the anal angle to beneath the apex, the lower side suffused, upper side connected in the disc with a dark reddish-fuscous acute diamond-shaped mark beneath the costa, beyond the connection margined with white. Within this triangle is a slender white twice sharply-toothed line proceeding from the middle of the upper side to the lower angle, and two small indistinct whitish spots on the hindmargin. The