Astralium lapillus

Astralium lapillus is a species of sea snail, a marine gastropod mollusk in the family Turbinidae, the turban snails.[1][2]

Astralium lapillus
Apertural view of a shell of Astralium lapillus
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Clade: Vetigastropoda
Order: Trochida
Superfamily: Trochoidea
Family: Turbinidae
Genus: Astralium
Species:
A. lapillus
Binomial name
Astralium lapillus
Reeve, 1863
Synonyms[1]
  • Astralium mactanense Habe & Okutani, 1980
  • Astralium (Cyclocantha) lapillus Reeve, 1863

Description

The size of the shell varies between 14 mm and 25 mm. The imperforate shell has an obtusely turbinated shape. its color pattern is fulvous, tinged with red at the base. Most of the specimens are strongly covered with incrustations, which render it impossible to count the whorls. The whorls convexly slope next the suture, then become tumidly rounded. They are longitudinally rudely ribbed with ribs irregularly wrinkled and tuberculated. The convex base of the shell is very closely irregularly scaled, with indistinct spiral lirae and fine radiating lamellae. The margin is more or less lobed. The aperture has rose-colored margins. The interior of the aperture is grooved at some distance from the margin; only the groove corresponding to the keel, reaches the outer margin. The operculum is externally very convex, with close-set granules, the margin is deep violet, especially the columellar one.[3][4]

Distribution

This marine species occurs off the Philippines and Fiji.

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References
  1. Bouchet, P. (2012). Astralium lapillus. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581727 on 2012-09-01
  2. Alf A. & Kreipl K. (2011) The family Turbinidae. Subfamilies Turbininae Rafinesque, 1815 and Prisogasterinae Hickman & McLean, 1990. In: G.T. Poppe & K. Groh (eds), A Conchological Iconography. Hackenheim: Conchbooks. pp. 1-82, pls 104-245.
  3. Schepman 1908-1913, The Prosobranchia of the Siboga Expedition; Leyden,E. J. Brill,1908-13
  4. G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
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