Abstract
Sculpins from mountain tributaries of the upper reaches of the Rhone River (Haute-Savoy district) in the collection of the National Museum of Natural History (Paris, France) are described as a new species Cottus sabaudicus. This species belongs to the species group C. gobio, but is characterized by several morphologically specific features. It differs from the typical species of the genus C. gobio in its monotonous body coloration, an increased postanal distance that equals preanal distance, an absence of dark stripes on ventral fins, the ratio of the length of caudal peduncle and depth (1.8–2.3 versus 2.3–2.8), and a greater number of pores in the trunk seismosensory canal (34–37 versus 31–33 + 1).
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