Aristovasum cassiforme, common name the helmet vase, is a species of medium to large sea snail, a marine gastropod mollusk in the family Vasidae.
Distribution Aristovasum cassiforme lives in the southeastern and northeastern littoral of Brazil,Conquiliologistas do Brasil website. URL: http://www.conchasbrasil.org.br/english/conchology/descricao.asp?id=270. Accessed 29 June 2009. including Abrolhos and the Brazilian states of Rio Grande do Norte, Paraíba, Pernambuco, Alagoas, Sergipe, Bahia and Espírito Santo.
Shell description The maximum reported size of this species shell is 114.9 mm.
Aristovasum cassiforme has a large, thick and heavy shell, presenting 8 whorls. One of its most striking characteristics is its rich ornamentation, with foliated cords and spines over the body whorl and shoulder, respectively. It is colored cream or light brown externally, while the aperture may be colored purplish-brown.
Distribution This marine species occurs off Brazil.
Ecology Habitat This sea snail lives on sand and muddy bottoms, to a depth of 70 m.
References
External links Kiener L.C. 1840-1841. Spécies général et iconographie des coquilles vivantes. Vol. 6. Famille des Canalifères. Deuxième partie. Genres Pyrule (Pyrula), Lamarck, pp. 1-34, pl. 1-15 [all (1840); Fasciolaire (Fasciolaria), Lamarck, pp. 1-17 + table, pl. 1-13 [all (1840)]; Turbinelle (Turbinella), Lamarck, pp. 1-50, pl. 1-21 [pp. 1-16 (1840), 17-32 (1841); pl. 1-21 (1840)]; Cancellaire (Cancellaria), Lamarck, pp. 1-44, pl. 1-9 [all (1841)]. Paris, Rousseau & J.B. Baillière]