See text Subemarginula Gray, 1847 Hemitoma is a genus of slit limpets, marine gastropod molluscs in the family Fissurellidae, the keyhole limpets and slit limpets.

[1] In this genus of fissurellid, there is an inconspicuous notch at the anterior end of the shell rather than a slit.

The notch is best seen in an interior view of the shell.

Species within the genus Hemitoma include:[2] According to the World Register of Marine Species (WoRMS) the following species names have been accepted [3] The Indo-Pacific Molluscan Database also includes the following species with names in current use [4]