Granotoma tumida is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. Distribution This marine species occurs off Greenland. References Posselt H.G., Jensen A.S.. 1898. Grønlands Brachiopoder og Bloddyr. Udgivet efter Forfatterens Død ved Ad. S. Jensen. Meddelelser om Grønland, 23: 1–298 External links Tucker, J.K. 2004 Catalog of recent and fossil turrids (Mollusca: Gastropoda). Zootaxa 682:1–1295. Merkuljev A.V. (2017). Taxonomic puzzle of Propebela arctica (A. Adams, 1855) (Gastropoda, Mangeliidae) - six different species under single name. Ruthenica. 27(1): 15–30 tumida Gastropods described in 1876