“Liotella rotula”的意思、由来-开放百科全书

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Liotella rotula

释义

Description
Distribution
References

{{Speciesbox
| taxon = Liotella rotula
| image = Liotella rotula 001.jpg
| image_caption = Original drawing of a shell of Liotella rotula
| authority = (Suter, 1908) ^[1]
| synonyms_ref =
| synonyms =

Liotia rotula Suter, 1908
Cyclostremella neozelanica Suter, 1908
Liotella rotuloides Powell, 1937

}}Liotella rotula is a species of minute sea snail, a marine gastropod mollusc in the family Skeneidae.^[2]

Description

The height of the shell attains 1 mm, its diameter 1.7 mm. This thin, white, translucent shell has a discoidal shape and is widely umbilicate. The flat spire consists of 4 whorls, including the 2 narrow, smooth, convex whorls of the slightly raised protoconch. The shell is ornamented with many radial riblets and intercostal spiral striae. The rounded, elevated spiral riblets are prominent. These are much closer together on approaching the aperture. The Interstices are distantly microscopically spirally striate. The large, convex body whorl contains 17 radial riblets. It is rounded at the periphery, but convex at the base. The sutures are impressed. The aperture is rounded. The thin peristome is continuous,

thickened by the last radiate rib. The columella is arcuate, not reflexed. The umbilicus is wide. Its perspective shows all the whorls.^[3]^[4]

Distribution

This marine species is endemic to New Zealand.

References

1. ^[https://www.biodiversitylibrary.org/page/32058169#page/51/mode/1up Suter (1908), Additions to the Marine Molluscan Fauna of New Zealand, with Descriptions of New Species, Proceedings of the Malacological Society of London v.8 (1908-1909); pl. II # 6]
2. ^Rosenberg, G. (2012). Liotella rotula (Suter, 1908). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=598366 on 2012-09-11
3. ^[https://www.biodiversitylibrary.org/page/5648358#page/289/mode/1up A.W.B. Powell, The Molluscan Fauna of Northern New Zealand; Discovery Reports v.15 1937]
4. ^[https://archive.org/details/manualofnewzeala00sute Suter H. (1913-1915), Manual of New Zealand Mollusca; Wellington, N. Z. :J. Mackay, govt. printer,1913-1915]

Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 {{ISBN|0-00-216906-1}}
Spencer, H.G.; Marshall, B.A.; Maxwell, P.A.; Grant-Mackie, J.A.; Stilwell, J.D.; Willan, R.C.; Campbell, H.J.; Crampton, J.S.; Henderson, R.A.; Bradshaw, M.A.; Waterhouse, J.B.; Pojeta, J. Jr (2009). Phylum Mollusca: chitons, clams, tusk shells, snails, squids, and kin, in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. pp. 161–254
The New Zealand Mollusca: Liotella rotula

3 : Liotella|Gastropods of New Zealand|Gastropods described in 1908

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