''Austrodrillia'' is a

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomic class Gastropoda with slugs, which are distinguishe ...

s, marine

gastropod Gastropods (), commonly known as slugs and snails, belong to a large Taxonomy (biology), taxonomic class of invertebrates within the phylum Mollusca called Gastropoda (). This class comprises snails and slugs from saltwater, freshwater, and fro ...

mollusk Mollusca is a phylum of protostomic invertebrate animals, whose members are known as molluscs or mollusks (). Around 76,000 extant species of molluscs are recognized, making it the second-largest animal phylum after Arthropoda. The ...

s in the

family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, families offer predictabili ...

Horaiclavidae Horaiclavidae is a family of predatory sea snail Sea snails are slow-moving marine (ocean), marine gastropod Mollusca, molluscs, usually with visible external shells, such as whelk or abalone. They share the Taxonomic classification, taxonomi ...

.Bouchet, P. (2011). Austrodrillia Hedley, 1918. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=432408 on 2012-07-05 It was previously categorized within

Crassispirinae Pseudomelatomidae is a family of predatory sea snails, marine gastropods included in the superfamily Conoidea (previously Conacea) and part of the Neogastropoda ( Bouchet & Rocroi, 2005). In 1995 Kantor elevated the subfamily Pseudomelatominae ...

Turridae Turridae is a Taxonomy (biology), taxonomic family (biology), family name for a number of predatory sea snails, Marine (ocean), marine gastropod mollusks in the superfamily Conoidea.MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). ...

Description

The small shell is very solid, subcylindrical or claviform. The

sculpture Sculpture is the branch of the visual arts that operates in three dimensions. Sculpture is the three-dimensional art work which is physically presented in the dimensions of height, width and depth. It is one of the plastic arts. Durable sc ...

consists of nodose ribs that do not attain the suture, and fine spiral threads which are most dense at the summit of the

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). In nature File:Photograph and axial plane floral diagra ...

. There is no epidermis. The

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 " ...

consists of two smooth and elevate whorls. The

aperture In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or opening that primarily limits light propagated through the system. More specifically, the entrance pupil as the front side image o ...

is wide, without varix or internal armature. The outer

lip The lips are a horizontal pair of soft appendages attached to the jaws and are the most visible part of the mouth of many animals, including humans. Mammal lips are soft, movable and serve to facilitate the ingestion of food (e.g. sucklin ...

is simple. The wide sinus is U-shaped, its right margin resting on a massive insertion callus. The fasciole is indistinguishable.

Distribution

This marine genus occurs off

Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...

and

New Zealand New Zealand () is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and List of islands of New Zealand, over 600 smaller islands. It is the List of isla ...

. One species is found in the

Atlantic Ocean The Atlantic Ocean is the second largest of the world's five borders of the oceans, oceanic divisions, with an area of about . It covers approximately 17% of Earth#Surface, Earth's surface and about 24% of its water surface area. During the ...

off

St. Helena Saint Helena (, ) is one of the three constituent parts of Saint Helena, Ascension and Tristan da Cunha, a remote British overseas territory. Saint Helena is a volcanic and tropical island, located in the South Atlantic Ocean, some 1,874 km ...

Species

Species within the genus ''Austrodrillia'' include: * ''

Austrodrillia agrestis ''Austrodrillia agrestis'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae. Description The length of the attains 8.5 mm, its diameter 3 mm. The ...

'' (Verco, 1909) * ''

Austrodrillia albobalteata ''Austrodrillia albobalteata'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.Rosenberg, G. (2015). Austrodrillia albobalteata (E. A. Smith, 1890). In: MolluscaBase (2015). Accessed through: World Register of M ...

'' (E. A. Smith, 1890) * ''

Austrodrillia angasi ''Austrodrillia angasi'', common name Angas's turrid, is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was previously classified within the family Turridae. Description The length of the shell attains 16&nb ...

'' (Crosse, 1863) * ''

Austrodrillia beraudiana ''Austrodrillia beraudiana'' is a species of sea snail, a marine gastropod mollusk in the family (biology), family Horaiclavidae.WoRMS (2015). Austrodrillia beraudiana (Crosse, 1863). In: MolluscaBase (2015). Accessed through: World Register of ...

'' (Crosse, 1863) * ''

Austrodrillia dimidiata ''Austrodrillia dimidiata'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae. Description The length of the shell attains 7.9 mm, its diameter 2 mm ...

'' (Sowerby III, 1896) * ''

Austrodrillia hinomotoensis ''Austrodrillia hinomotoensis'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae. Description Distribution This marine species occurs in Sagami Bay li ...

'' Kuroda, Habe & Oyama, 1971 * ''

Austrodrillia rawitensis ''Austrodrillia rawitensis'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.Marshall, B. (2014). Austrodrillia rawitensis Hedley, 1922. Accessed through: World Register of Marine Species at http://www.marinespe ...

'' Hedley, 1922 * ''

Austrodrillia saxea ''Austrodrillia saxea'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae, the turrids. Description The length of the shell attains 7 mm, its diameter 3& ...

'' (Sowerby III, 1896) * ''

Austrodrillia secunda ''Austrodrillia secunda'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae. Description Distribution This marine species is endemic to New Zealand ...

'' Powell, 1965 * ''

Austrodrillia sola ''Austrodrillia sola'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae, the turrids. Description Distribution This marine species is endemic to New Zealan ...

'' Powell, 1942 * ''

Austrodrillia subplicata ''Austrodrillia subplicata'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae. It was formerly included within the family Turridae. Description The length of the shell attains 7 mm, its diameter is 3 ...

'' (Verco, 1909) ;Species brought into synonymy: * ''Austrodrillia achatina'' Verco, J.C., 1909: synonym of ''

'' (Sowerby III, 1896) * † ''Austrodrillia alpha'' L. C. King, 1933: synonym of † ''

Aoteadrillia alpha ''Aoteadrillia wanganuiensis'' is a species of sea snail, a marine gastropod mollusk in the family Horaiclavidae.Rosenberg, G. (2012). Aoteadrillia wanganuiensis. Accessed through: World Register of Marine Species at http://www.marinespecies.org ...

'' (L. C. King, 1933) * ''Austrodrillia burnupi'' (Sowerby III, 1897): synonym of '' Tylotiella burnupi'' (Sowerby III, 1897) * † ''Austrodrillia cinctuta'' Marwick, 1929: synonym of † '' Mauidrillia clavicula'' Powell, 1942 * † ''Austrodrillia consequens'' C.R. Laws, 1936: synonym of † '' Aoteadrillia consequens'' (Laws, 1936) * † ''Austrodrillia koruahinensis'' Bartrum & Powell, 1928: synonym of † '' Splendrillia koruahinensis'' (Bartrum & Powell, 1928) * ''Austrodrillia hottentota'' (E. A. Smith, 1882): synonym of '' Tylotiella hottentota'' (E. A. Smith, 1882) * ''Austrodrillia nenia'' (Hedley, 1903): synonym of '' Splendrillia nenia'' (Hedley, 1903) * ''Austrodrillia praetermissa'' (E. A. Smith, 1904): synonym of '' Naudedrillia praetermissa'' (E. A. Smith, 1904) * ''Austrodrillia woodsi'' (Beddome, 1883): synonym of ''

Splendrillia woodsi ''Splendrillia woodsi'' is a species of sea snail, a marine gastropod mollusk in the family Drilliidae.Bouchet, P. (2014). Splendrillia woodsi. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdet ...

'' (Beddome, 1883)

References

* Bouchet P., Kantor Yu.I., Sysoev A. & Puillandre N. (2011) ''A new operational classification of the Conoidea''. Journal of Molluscan Studies 77: 273-308.

External links

Tucker, J.K. 2004 ''Catalog of recent and fossil turrids (Mollusca: Gastropoda)''. Zootaxa 682:1-1295.

Specimen at MNHN, Paris
{{Taxonbar, from=Q3173663 Horaiclavidae Gastropod genera