Cirsonella laxa
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| Cirsonella laxa | ||||||||||||||||||
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| Cirsonella laxa Powell, 1937 |
Cirsonella laxa is a minute sea snail, a marine gastropod mollusc in the family Cyclostrematidae.
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[edit] Distribution
This species is endemic to New Zealand's Three Kings Islands and The Snares.
[edit] Habitat
This species is found at depths of between 90 and 475 m.
[edit] Shell description
The shell is minute, subdiscoidal, and loosely coiled. The circular aperture and peristome is completely separated from the body whorl. From above, the outer lip is strongly retractive to the suture. The umbilicus is wide, about one third the diameter of the base. Sculpture is confined to five spiral cords on the upper base, from the edge of the umbilicus upwards.
Shell coloration is white.
The shell height is up to 0.8 mm, and the width is up to 1.25 mm.
[edit] References
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
