Litiopa is a genus of sea snails, marine gastropod mollusks in the family Litiopidae.^[1]

The following species are recognised in the genus Litiopa:^[1]

• †Litiopa acuminata (Baudon, 1853)
• †Litiopa alnensis Cossmann, 1907
• †Litiopa insolita (Deshayes, 1865)
• Litiopa limnophysa Melvill & Standen, 1896
• Litiopa melanostoma (Rang, 1829)
• Litiopa nipponica Kuroda & Kawamoto, 1956
• †Litiopa punctulifera Tate, 1894
• †Litiopa texana Garvie, 1996
• Litiopa tumescens (Thiele, 1925)
• †Litiopa turriculata (Cossmann, 1896)

Former species

• Litiopa bucciniformis Hornung & Mermod, 1926 - synonymized with Bittium proteum (Jousseaume, 1931)
• Litiopa effusa C. B. Adams, 1850 - synonymized with Monoplex pilearis (Linnaeus, 1758)
• Litiopa obesa C. B. Adams, 1850 - synonymized with Gutturnium muricinum (Röding, 1798)
• Litiopa saxicola C. B. Adams, 1852 - synonymized with Elachisina saxicola (C. B. Adams, 1852)

• Gofas, S.; Le Renard, J.; Bouchet, P. (2001). Mollusca, in: Costello, M.J. et al. (Ed.) (2001). European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels, 50: pp. 180–213
• Bouchet P. (2002) Gone with the wind: a pelagic marine snail described as an endemic land snail from the Bahamas. The Nautilus 116(1):32-35.
• Spencer, H.; Marshall. B. (2009). All Mollusca except Opisthobranchia. In: Gordon, D. (Ed.) (2009). New Zealand Inventory of Biodiversity. Volume One: Kingdom Animalia. 584 pp