Oliva incrassata

Oliva incrassata
Five views of a shell of Oliva incrassata
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Subclass:	Caenogastropoda
Order:	Neogastropoda
Family:	Olividae
Genus:	Oliva
Species:	O. incrassata
Binomial name
Oliva incrassata (Lightfoot in Solander, 1786) [1]
Synonyms [2]
Oliva burchorumZeigler, 1969 Oliva niveaPilsbry, 1910

Oliva incrassata, the angled olive or giant olive, is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives. ^[2]

Distribution

This species is widespread from California to Peru. ^[3]

Habitat

These sea snails live at the low-tide level, at the outer side of sandspits. ^[4]

Shells of Oliva incrassata from Panama, on display at the Museo Civico di Storia Naturale di Milano

Description

Shells of Oliva incrassata can reach a length of 32–95 millimetres (1.3–3.7 in). ^[3] These relatively large shells are almost cylindrical, very thick, ovate, angularly swollen in the middle, with a rather short spire, a narrow and long aperture and usually with uniformly colored body whorls, except in the columellar area. The basic color background may vary from ash-white or greyish to light yellow and brown, mottled with gray and olive, with angled transverse dark chestnut streaks and a fleshy rosy pink columellar area. ^{[4] [5]}

Biology

The Giant Olives are active predators. At night they search for food, while during the day they bury themselves beneath the sand and mud.

References

1. Sowerby G. B. [first of the name (1825). A catalogue of the shells contained in the collection of the late Earl of Tankerville. London, privately published : VII + 92 + XXXIV pp.]. World Register of Marine Species, Retrieved 28 April 2010.
2. Oliva incrassata (Lightfoot in Solander, 1786) . Retrieved through: World Register of Marine Species  on 28 April 2010.
3. "Oliva (Strephona) incrassata". Gastropods.com. Retrieved 12 January 2019.
4. Angeline Myra Keen (1971). Sea Shells of Tropical West America: Marine Mollusks from Baja California to Peru. Stanford University Press. p. 622. ISBN   978-0-8047-0736-7.
5. Maurizio A. Perrini The Oliva

External links

• Conchology Inc

Bibliography

• Sowerby G. B. [first of the name] (1825). A catalogue of the shells contained in the collection of the late Earl of Tankerville. London, privately published : VII + 92 + XXXIV pp.
• Tursch B., Duchamps R. & Greifeneder D. - Studies on Olividae, XX. The pre-Lamarckian names for Oliva species. APEX 9 (2/3) 51–78, July, 1994
• Zeigler R.F. & Porreca H.C. - Olive Shells of the World. Rochester Polychrome Press, N.Y. 1969.