''Austrodrillia angasi'', common name Angas's turrid, 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 Horaiclavidae
Horaiclavidae is a family of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea.
In 2011 this family was split off from the family Pseudomelatomidae (formerly the subfamily Crassispirinae McLean, 1971) by Bouchet P., Ka ...
.
It was previously classified within the family
Turridae
Turridae is a taxonomic family name for a number of predatory sea snails, marine gastropod mollusks in the superfamily Conoidea. MolluscaBase (2018). Turridae H. Adams & A. Adams, 1853 (1838). Accessed through: World Register of Marine Specie ...
.
Description
The length of the shell attains 16 mm.
The shell has a brownish olivaceous color. It contains 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. The embryonal whorls are smooth. The others contain from seven to ten short longitudinal ribs forming a tuberculated shoulder. The surface often shows minute revolving striae. The
aperture is chestnut-brown. Sometimes there is a brown band below the middle of 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 ...
.
G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol. VI; Philadelphia, Academy of Natural Sciences
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Distribution
This marine species is endemic to Australia and occurs off New South Wales, Tasmania and Victoria.
References
* Crosse, H. 1863. ''Description d'espèces nouvelles d'Australie''. Journal de Conchyliologie 11: 84–90
* Angas, G.F. 1867. ''A list of species of marine Mollusca found in Port Jackson harbour, New South Wales, and on the adjacent coasts, with notes on their habits, etc. Part I.'' Proceedings of the Zoological Society of London 1867: 185–233
* Hedley, C. 1922. ''A revision of the Australian Turridae''. Records of the Australian Museum 13(6): 213–359, pls 42–56
* Allan, J.K. 1950. ''Australian Shells: with related animals living in the sea, in freshwater and on the land.'' Melbourne : Georgian House xix, 470 pp., 45 pls, 112 text figs.
* Laseron, C. 1954. ''Revision of the New South Wales Turridae (Mollusca).'' Australian Zoological Handbook. Sydney : Royal Zoological Society of New South Wales 1–56, pls 1–12.
* 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
* Wilson, B. 1994. ''Australian Marine Shells. Prosobranch Gastropods''. Kallaroo, WA : Odyssey Publishing Vol. 2 370 pp.
External links
*
MNHN, Paris: syntype
{{DEFAULTSORT:Austrodrillia Angasi
angasi
Gastropods of Australia