Tropidofusus aequilonius is a species of large sea snail, marine gastropod mollusk in the family Columbariidae.MolluscaBase (2018). Tropidofusus aequilonius (Sysoev, 2000). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=1296712 on 2018-11-05
Distribution This species occurs in the Bering Sea.
References
Sysoev A.V. 2000. A new species of Columbariinae (Gastropoda, Turbinellidae) from the Bering Sea. Ruthenica 10(1): 72-74
External links Harasewych M.G. (2018). Tropidofusus ypotethys: a new genus and new species of Columbariidae (Mollusca: Gastropoda: Turbinelloidea). Molluscan Research. DOI: 10.1080/13235818.2018.1484265: 1-11