''Guildfordia triumphans'', common name the triumphant star turban, 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

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.

Description

The size of the shell varies between 35 mm and 60 mm. The imperforate shell has a low-conic shape. Its color pattern is, metallic brownish-purple above, nearly white below. The six

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 floral ...

s are slightly convex above. The

body whorl The body whorl is part of the morphology of the shell in those gastropod mollusks that possess a coiled shell. The term is also sometimes used in a similar way to describe the shell of a cephalopod mollusk. In gastropods In gastropods, the b ...

is armed around the carinate periphery with long slender closed tubular radiating spines, about eight in number on the body-whorl, and which are reabsorbed as the growth advances leaving only short stumps to festoon the sutures. The upper surface shows a close revolving series – generally eight to ten on the body whorl – of minute laterally compressed granules. The base of the shell is slightly convex, usually with a marginal row of granules, and several rows surrounding the central callus. The aperture is transversely ovate, angulate and channelled at peripheral carina, iridescent within. The peristome is sinuous above. The umbilical region is covered with a heavy callus, more or less stained with pinkish, somewhat excavated at center, and obsoletely spirally ridged.G.W. Tryon (1888), Manual of Conchology X; Academy of Natural Sciences, Philadelphia
(described as ''Astralium (Guildfordia) triumphans'') Guildfordia triumphans

Distribution

This marine species occurs off the Philippines, Indo-China, Indo-Malaysia,

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

and Australia ''(Northern Territory'', Queensland).

References

* Philippi, R.A. 1841. ''Auszüge aus einigen in der Sitzung gehaltenen Vortäagen''. Jahresbericht über die Tätigkeit des Vereins für Naturkunde in Cassel 5: 8–10 * Ponder, W.F. 1971. ''Guidfordia triumphans (Philippi) from Australia (Mollusca: Turbinidae).'' Journal of the Malacological Society of Australasia 2(2): 133–134, pl. 9

External links

* {{DEFAULTSORT:Guildfordia Triumphans triumphans Gastropods described in 1841 Taxa named by Rodolfo Amando Philippi