''Uvanilla buschii'', common name Busch's star shell, is a
species of
sea snail
Sea snail is a common name for slow-moving marine gastropod molluscs, usually with visible external shells, such as whelk or abalone. They share the taxonomic class Gastropoda with slugs, which are distinguished from snails primarily by the ...
, a
marine
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
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* ...
gastropod
The gastropods (), commonly known as snails and slugs, belong to a large taxonomic class of invertebrates within the phylum Mollusca called Gastropoda ().
This class comprises snails and slugs from saltwater, from freshwater, and from land. T ...
mollusk in the
family Turbinidae, the turban snails.
[Bouchet, P. (2012). ''Uvanilla buschii'' (Philippi, 1844). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=581668 on 2012-09-01]
Description
The shell attains a size between 17 mm and 60 mm. The solid, imperforate shell has a conic shape. Its color pattern is olivaceous brown, maculated obscurely above with brown, green or white. The seven
whorl
A whorl ( or ) is an individual circle, oval, volution or equivalent in a whorled pattern, which consists of a spiral or multiple concentric objects (including circles, ovals and arcs).
Whorls in nature
File:Photograph and axial plane flo ...
s are longitudinally costate below the
sutures and above the periphery, with two spiral series of tubercles around the middle of the flattened upper surface, or sometimes finely irregularly plicate over the whole upper surface. The periphery is acutely carinated, bearing numerous short compressed triangular radiating spines. The flat base of the shell is densely radiately lamellose-striate, with a strong rib revolving midway between the periphery and the center The
aperture is oblique, pearly white within, transversely ovate, deeply channelled at the periphery. The columellar region is white, strongly bicostate, deeply excavated at the position of the
umbilicus. The parietal callus is not much extended.
The
operculum is oblong with a submarginal nucleus. The outer surface is white, with a strong curved central rib, its terminations joined by a A-shaped ridge.
G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
(described as ''Astralium buschii'')
Distribution
This species occurs in the Pacific Ocean from Mexico to Peru.
References
External links
To World Register of Marine Species
*
{{Taxonbar, from=Q7903630
buschii
Gastropods described in 1844