Prothalotia porteri is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.Marshall, B. (2013). Prothalotia porteri (Iredale, 1940). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=720364 on 2014-02-20
Distribution This marine species is endemic to Australia and occurs off Lord Howe Island.
References
Iredale, T. 1940. Marine molluscs from Lord Howe Island, Norfolk Island, Australia, and New Caledonia. The Australian Zoologist 9(4): 429–443, pl. 32–34