Considered a synonym of Anguilla rostrata (Lesueur, 1817)
- Smith, D.G.. 1989. "Various eel families". Memoirs of the Sears Foundation of Marine Research. (9), (ffm04555)
Original description as Leptocephalus grassii:
- Eigenmann, Carl H. & C.H. Kennedy. 1902. "The leptocephalus of the American eel and other American Leptocephali". Bulletin of the U.S. Fish Commission. 21:81-92 (ffm04554)