Omalogyridae
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Omalogyridae are a family of minute and microscopic sea snails, marine gastropod molluscs or micromolluscs in the order Heterostropha.
This family includes what are probably the smallest snails in the world.
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[edit] Shell description
The minute shells of these species are planorbiform, with an involute spire and circular aperture, discontinuous only for a short space across the parietal wall.
The operculum is paucispiral, corneous, with a central nucleus.
[edit] Description of live animal
The animal has sessile eyes, but no cephalic tentacles. The radula formula is 1+1+1, and the central tooth has a large cusp on a quadrangular base.
[edit] Habitat
Individuals of these species are usually found feeding on algae.
[edit] Genera within the family Omalogyridae
- Ammonicera Vayssiére, 1893
- Omalogyra Jeffreys, 1867
[edit] References
- Omalogyridae (TSN 71218). Integrated Taxonomic Information System.
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
