Citation: Warren, A. (2013). Amphorellopsis tetragona (Jørgensen, 1924) Kofoid & Campbell, 1929. In: Warren, A. (2013) World Ciliophora Database. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=427533 on 2013-05-19