Presencia de Cobitis maroccana Pellegrin, 1929 (Osteichthyes, Cobitidae) en el río Nalón (cuenca del norte de España)

Resum

Capture of Cobitis maroccana Pellegrin, 1929 (Osteichthyes, Cobitidae) in the Nalon River (Cantabric Slope)
A new locality of Cobitis maroccana is reported in a highly polluted area in the Nalon River (Cantabric Slope). Through the morphological data, it is imposible to know if the species is native in this area or has been introduced.