Zappa confluentus

Zappa confluentus, the New Guinea slender mudskipper, is a mudskipper endemic to New Guinea, where it is only known from the lower parts of the Fly, Ramu and Bintuni Rivers. It is found on mudflats adjacent to turbid rivers. This species can reach a length of 4.4 cm SL.

Etymology
Zappa was named after musician Frank Zappa "for his articulate and sagacious defense of the First Amendment of the U.S. Constitution".