Cirsonella
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Cirsonella is a genus of sea snails, marine gastropod molluscs in the family Cyclostrematidae.
The shells are minute, subglobose to depressed-turbinate, solid, typically smooth and polished, umbilicate, with a circular aperture, peristome continuous, thickened, but not variced. In some species the base is spirally lirate, in others the umbilicus is strongly radially ridged, and in one atypical member these radials extend over the entire post-nuclear whorls.
[edit] Distribution
Species in this genus are endemic to Australia and New Zealand.
[edit] Species within the genus Cirsonella
- Cirsonella ateles (Dautzenberg & H. Fischer, 1896)
- Cirsonella carinata
- Cirsonella consobrina Powell, 1930
- Cirsonella densilirata Suter, 1908
- Cirsonella extrema Thiele, 1912
- Cirsonella gaudryi (Dautzenberg & Fischer H., 1896)
- Cirsonella laxa Powell, 1937
- Cirsonella maoria Powell, 1937
- Cirsonella naticoides
- Cirsonella paradoxa Powell, 1937
- Cirsonella parvula Powell, 1926
- Cirsonella pisiformis Powell, 1937
- Cirsonella propelaxa Dell, 1956
- Cirsonella reflecta
- Cirsonella romettensis (Granata-Grillo, 1877)
- Cirsonella simplex Powell, 1937
- Cirsonella variecostata Powell, 1940
- Cirsonella waikukuensis Powell, 1937
- Cirsonella weldii
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This list is incomplete; you can help by expanding it.
[edit] References
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
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