''Antiguraleus aeneus'' 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 (2015). Antiguraleus aeneus (Hedley, 1922). In: MolluscaBase (2015). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=432982 on 2017-03-05]
Description
The length of the shell attains 11 mm, its diameter 4 mm.
(Original description) The small, solid shell has a cylindro-fusiform shape. It is polished and constricted at the sutures. On decollate specimens 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 remain, divided by linear sutures. The colour of the shell is amber-brown, with ochraceous reflections. The sculpture shows prominent, arcuate ribs, each slightly overhanging the one below, seven to a whorl, consecutive on the
spire, smaller 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 ...
where they do not reach the base. On the base and snout are six revolving threads. The
aperture is rather wide, flanked by a tall and thick
varix
A varix (pl. varices) is an abnormally dilated vessel with a tortuous course. Varices usually occur in the venous system, but may also occur in arterial or lymphatic vessels.
Examples of varices include:
* Varicose veins, large tortuous veins usua ...
. The edge of the outer
lip is thin, insinuate at the base. The
columella is perpendicular and concave. The
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 ...
is short and wide. The sinus is wide and shallow. A prominent callus knob is prominent at the lip insertion.
Hedley, C. 1922. A revision of the Australian Turridae. Records of the Australian Museum 13(6): 213-359, pls 42-56
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Distribution
This marine species is endemic to Australia and occurs off Queensland.
References
* Cotton, B.C. 1947. ''Australian Recent and Tertiary Turridae''. Adelaide : Field Naturalist's Section of the Royal Society of South Australia. Conchology Club Vol. 4 pp. 1–34.
* Wells F.E. (1991) ''A revision of the Recent Australian species of the turrid genera Clavus, Plagiostropha, and Tylotiella (Mollusca: Gastropoda).'' Journal of the Malacological Society of Australia 12: 1–33.
* Wilson, B. 1994. ''Australian Marine Shells. Prosobranch Gastropods''. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
External links
*
Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1-1295.
{{Taxonbar, from=Q9617570
aeneus
Gastropods described in 1922
Gastropods of Australia