Oliva incrassata

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]

Oliva incrassata
Five views of a shell of Oliva incrassata
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Caenogastropoda
clade Hypsogastropoda
clade Neogastropoda
Superfamily:
Olivoidea
Family:
Olividae
Genus:
Oliva
Species:
O. incrassata
Binomial name
Oliva incrassata
Synonyms[2]

Oliva burchorum Zeigler, 1969
Oliva nivea Pilsbry, 1910

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 colummellar 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

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.


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