''Zetela semisculpta'' 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
Marine is an adjective meaning of or pertaining to the sea or ocean.
Marine or marines may refer to:
Ocean
* Maritime (disambiguation)
* Marine art
* Marine biology
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* ...
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 Solariellidae
Solariellidae is a family of small sea snails, marine gastropod mollusks in the superfamily Trochoidea (according to the taxonomy of the Gastropoda by Bouchet & Rocroi, 2005).Gofas, S. (2011). Solariellidae. Accessed through: World Register of ...
.
[MolluscaBase (2018). ''Zetela semisculpta'' (Martens, 1904). Accessed through: World Register of Marine Species at: http://www.marinespecies.org/aphia.php?p=taxdetails&id=865148 on 2018-12-28]
Description
(described as ''Spectamen semisculptum'') The height of the shell attains 3.1 mm, its diameter 4.6 mm. The thin, white shell has a depressed turbinate shape with a wide umbilicus. The acute
spire is conoid. It contains 4 convex
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
suture is distinct, and not channeled. The
umbilicus is funnel-shaped. The rounded
aperture is slightly oblique. The peristome is thin, outer margin very colunellari slightly arched. The outer
lip is pronounced. The
columella is slightly arched.
von Martens (1904) Die beschalten Gastropoden der deutschen Tiefsee-Expedition, 1898–1899.. In. A. Systematisch-geographischer Theil., vol. 7 Wissenschaftliche Ergebnisse der deutschen Tiefsee-Expedition auf dem Dampfer "Valdivia" 1898–1899, 1–146
(described in Latin as ''Cyclostrema (Tubiola) semisculptum'')
Distribution
This marine species occurs in the Indian Ocean off KwaZulu-Natal
KwaZulu-Natal (, also referred to as KZN and known as "the garden province") is a province of South Africa that was created in 1994 when the Zulu bantustan of KwaZulu ("Place of the Zulu" in Zulu) and Natal Province were merged. It is locate ...
and the Agulhas Bank
The Agulhas Bank (, from Portuguese for Cape Agulhas, ''Cabo das Agulhas'', "Cape of Needles") is a broad, shallow part of the southern African continental shelf which extends up to south of Cape Agulhas before falling steeply to the abyssal ...
, Rep. South Africa
References
External links
To World Register of Marine Species
Solariellidae
Gastropods described in 1904
{{Solariellidae-stub