Conus iodostoma
Conus iodostoma, common name the violet-mouth cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies. Like all species within the genus Conus, these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all. Description
The size of an adult shell varies between 25 mm and 47 mm. The shell is thin, narrow and somewhat inflated. The spire is finely grooved. The apex is sharp. The body whorl is striate towards the base. The color of the shell is violet-white, clouded with chestnut, with revolving lines of chestnut spots. Distribution
This species occurs in the Indian Ocean off Madagascar and Mozambique. References

 Kiener L.C. 1844–1850. Spécies général et iconographie des coquilles vivantes. Vol. 2. Famille des Enroulées. Genre Cone (Conus, Lam. ), pp. 1–379, pl. 1-111 [pp. 1–48 (1846); 49–160 (1847); 161–192 (1848); 193–240 (1849); 241-[379](assumed to be 1850); plates 4,6 (1844); 2–3, 5, 7–32, 34–36, 38, 40–50 (1845); 33, 37, 39, 51–52, 54–56, 57–68, 74–77 (1846); 1, 69–73, 78–103 (1847); 104–106 (1848); 107 (1849); 108–111 (1850)]. Paris, Rousseau & J.B. Baillière
 Filmer R.M. (2001). A Catalogue of Nomenclature and Taxonomy in the Living Conidae 1758 – 1998. Backhuys Publishers, Leiden. 388pp
 Tucker J.K. (2009). Recent cone species database. September 4, 2009 Edition
 Tucker J.K. & Tenorio M.J. (2009) Systematic classification of Recent and fossil conoidean gastropods. Hackenheim: Conchbooks. 296 pp. Puillandre N., Duda T.F., Meyer C., Olivera B.M. & Bouchet P. (2015). One, four or 100 genera? A new classification of the cone snails. Journal of Molluscan Studies. 81: 1–23

External links
 The Conus Biodiversity website
 
 Cone Shells – Knights of the Sea

iodostoma
Gastropods described in 1843