Hemitoma Swainson 1840 (snail)
Gastropoda - Fissurelloidea - Fissurellidae
Parent taxon: Fissurellidae according to J. A. Todd 2001
Sister taxa: Altrix, Austriacopsis, Emarginulinae, Fissurellinae, Leurolepas, Lucapina, Lucapinella, Nesta, Parmophorus, Puncturella, Subemarginula, Zeidora
Subtaxa: Hemitoma (Hemitoma), Hemitoma (Montfortia), Hemitoma multiradiata, Hemitoma octoradiata, Hemitoma panhi
Ecology: facultatively mobile epifaunal grazer