''Splendrillia spadicina'' is a

species In biology, a species is the basic unit of Taxonomy (biology), classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of ...

of sea snail, a marine gastropod

mollusk Mollusca is the second-largest phylum of invertebrate animals after the Arthropoda, the members of which are known as molluscs or mollusks (). Around 85,000 extant species of molluscs are recognized. The number of fossil species is es ...

in the

family Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Idea ...

Drilliidae The Drilliidae are a taxonomic family of small predatory sea snails with high-spired shells. They are classified as marine gastropod mollusks in the superfamily Conoidea. This family has no subfamilies. It consists of about 30 genera and approxi ...

Description

The length of the shell attains 25 mm, its diameter 8 mm. (Original description) The large, solid shell has an elongate-conic shape and is regularly tapering. Its colour is cinnamonbrown. The shell contains 10

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 . The suture is linear. Below the suture runs an elevated spiral cord. In the intervals between the ribs and on the base are fine spiral threads. The fasciole area is excavate, ornamented with fine spiral threads crossed by concentric strife. The ribs are fourteen to a whorl, oblique, round-backed, commencing below the fasciole and vanishing on the base. The

aperture In optics, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine the cone angle of a bundle of rays that come to a focus in the image plane. An ...

is pyriform. The insertion of lip starts ascending above the plane of the suture, and is supported by a prominent callus knob. The inner lip shows a smear of callus. The sinus is rather wide and shallow. 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 short and open. 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 Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to Australia and occurs off

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

References

* Wells, F.E. 1990. ''Revision of the recent Australian Turridae referred to the genera Splendrillia and Austrodrillia''. Journal of the Malacological Society of Australasia 11: 73–117

External links

* {{DEFAULTSORT:Splendrillia Spadicina spadicina Gastropods of Australia Gastropods described in 1922