Cottus perifretum is an indigenous species. While the western tubenose goby is a recent arrival, which managed to reach western Europe after the Danube and Rhine rivers were linked by a canal.
More sculpin videos are here.
Sculpin in Leiden: here.
During a 2017 survey of deep-sea fauna off the coast of Seragaki in Onna Village, Okinawa, researchers found something unexpected: a small fish with a vibrant yellow body. Using a remotely operated vehicle, the animal was retrieved 214 meters beneath the surface of the East China Sea. It was later identified as Larsonella pumilus: here.