Morum oniscus
Morum oniscus shell
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Harpidae
Genus:	Morum
Species:	M. oniscus
Binomial name
Morum oniscus (Linnaeus, 1767)
Synonyms
Cypraea conoidea Scopoli, 1786 Oniscia quadriseriata Menke, 1830 Oniscia triseriata Menke, 1830 (unnecessary substitute name for Strombus oniscus) Strombus oniscus Linnaeus, 1767 (original combination)

Morum oniscus is a species of sea snail, a marine gastropod mollusk in the family Harpidae, the harp snails.^[1]

This species occurs from Bermuda to southeastern Florida (Palm Beach County) and the Florida Keys; throughout the Bahamas and the entire Caribbean Sea Basin; south to the Lesser Antilles and Barbados (rare at Barbados). The species is absent from the Gulf of Mexico.

Shell size 15-32 mm.

• Dance, S.P. & G.T. Poppe, 1999 Family Harpidae. In : A Conchological Iconography (ConchBooks, ed.), 69 p.
• Petuch E.J. & Berschauer D.P. (2020). A review of the genus Morum (Gastropoda: Harpidae) in the Western Atlantic, with the description of two new species from Brazil. The Festivus. 52(1): 60–69.

• Linnaeus, C. (1767). Systema naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Ed. 12. 1., Regnum Animale. 1 & 2. Holmiae, Laurentii Salvii. Holmiae [Stockholm], Laurentii Salvii. pp. 1–532 [1766] pp. 533–1327
• Scopoli I.A. (1786). Deliciae florae et faunae Insubricae Pars 1 and 2. [iv] + 115 pp., frontispiece, 25 pls. Monasterii S. Salvatoris: Ticini
• Rosenberg, G.; Moretzsohn, F.; García, E. F. (2009). Gastropoda (Mollusca) of the Gulf of Mexico, Pp. 579–699 in: Felder, D.L. and D.K. Camp (eds.), Gulf of Mexico–Origins, Waters, and Biota. Texas A&M Press, College Station, Texas.