''Guraleus savuensis'' 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 Mangeliidae.WoRMS (2009). Guraleus savuensis (Schepman, 1913). In: MolluscaBase (2017). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=432715 on 2017-07-11

Description

The length of the shell attains 9 mm, its width 3 mm. (Original description) The shell is elongately fusiform, with a rather short

siphonal canal The siphonal canal is an anatomical feature of the shells of certain groups of sea snails within the clade Neogastropoda. Some sea marine gastropods have a soft tubular anterior extension of the mantle called a siphon through which water is ...

. It is rather strong, yellowish-white, with traces of red-brown bands (bleached). It contains scarcely 9

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, of which about 3 form a convexly whorled

protoconch A protoconch (meaning first or earliest or original shell) is an embryonic or larval shell which occurs in some classes of molluscs, e.g., the initial chamber of an ammonite or the larval shell of a gastropod. In older texts it is also called ...

. Of these about the upper one is smooth, the rest at first faintly, then strongly ribbed, with numerous elegant ribs and traces of a keel near the base of visible part of last nuclear whorl. The subsequent whorls are angularly convex, separated by a deep, strongly waved suture. The sculpture consists of rounded, not continuous, axial ribs, 7 in number on 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 ...

, crossed by spirals, of which a faint crenulated one, just below the suture, another strong one at the periphery, making the ribs slightly tubercled, and 3 spirals below it on penultimate whorl, 16 on the body whorl and siphonal canal, moreover a few very faint spirals above the periphery and numerous growth lines. The aperture is elongately oval, with a sharp angle above and a rather wide siphonal canal below. The peristome is broken, probably with a rather shallow sinus above. The columellar margin is nearly straight, with a thin layer of enamel. Schepman, 1913. The prosobranchia of the Siboga expedition. Part IV -V - VI: Toxoglossa

Distribution

This marine species is endemic to Indonesia and can be found in the Savu Sea.

References

External links

Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1–1295.
* {{DEFAULTSORT:Guraleus Savuensis savuensis Gastropods described in 1913