Wolfsnout goby

The wolfsnout goby (Luposicya lupus), also known as the dognsout goby or cup-sponge goby, is a species of goby native to the Indian Ocean and the western Pacific Ocean. This species lives on large fan-shaped or floppy sponges, particularly Phyllospongia foliascens and Phyllospongia papyracea, growing on reefs at depths down to 15 m. This species grows to a length of 3.5 cm SL. This species is the only known member of its genus. It spans benthically and is a solitary species.