Rhombus Cuvier [G.] 1816:222 Masc. Pleuronectes rhombus Linnaeus 1758. Type by absolute tautonymy. Objectively invalid; preoccupied by Rhombus da Costa 1776 in Mollusca [but Costa 1776 can be regarded as non-binomial -- G. Rosenberg, pers. comm. 6/3/2009]. •In the synonymy of Scophthalmus Rafinesque 1810 -- (Norman 1934:262 [ref. 6893]). 1°Homonym. Current status: Synonym of Scophthalmus Rafinesque 1810. Scophthalmidae.