Wikipedia
Philbertia is a genus of sea snails, marine gastropod mollusks in the family Raphitomidae. Some of the species that were formerly in this genus have been transferred to the genus Raphitoma.
Philbertia became a synonym of Raphitoma Bellardi, 1848 because Dr. P. Bouchet (1990) did not consider valid the subdivision of species into different genera solely on the basis of differences during larval development.
In describing Raphitoma, the World Register of Marine Species (WoRMS) relies on an unpublished database "Nomenclator of Molluscan Supraspecific Names" by Bouchet P. & Rocroi J.-P. (2010). However, the WoRMS database still (December 2011) shows 21 species retaining the genus name Philbertia. The website Gastropods.com also still accepts many species of Philbertia as valid, others as synonyms. Furthermore, in their publication "A new operational classification of the Conoidea (Gastropoda)", Bouchet, Kantor et al. (2011) still recognize Philbertia as a valid genus in the Raphitomidae.