Omalogyridae are a family of minute and microscopic sea snails, marine gastropod molluscs or micromolluscs in the informal group Lower Heterobranchia.[1] Adult shells are usually smaller than 1 millimeter.
| Omalogyridae | |
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| Retrotortina damara | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Heterobranchia |
| Infraclass: | Lower Heterobranchia |
| Superfamily: | Omalogyroidea |
| Family: | Omalogyridae G.O. Sars, 1878 |
| Genera | |
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See text | |
This family is poorly known and is tentatively placed in the unresolved infraclass "Lower Heterobranchia". Studies of this group are sketchy and miss or omit the basic information about taxonomy or distribution. [2]
Genera
editGenera within the family Omalogyridae include:
- Ammonicera Vayssiére, 1893
- Omalogyra Jeffreys, 1867
- Retrotortina Chaster, 1896
- † Schobertinella Nützel & Gründel, 2015
- Genera brought into synonymy
- Ammonicerina O.G. Costa, 1861: synonym of Omalogyra Jeffreys, 1859
- Helisalia Laseron, 1954: synonym of Omalogyra Jeffreys, 1859
- Homalogyra Jeffreys, 1867: synonym of Omalogyra Jeffreys, 1859
References
edit- ^ a b Gofas, S. (2012). Omalogyridae. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=1742 on 2012-08-31
- ^ Bieler R & Mikkelsen P. (1998), Ammonicera in Florida - Notes on the smallest living gastropod in the United States and comments on other species of Omalogyridae (Heterobranchia); The Nautilus, 111(1):1-12, 1998
- Bouchet, P., Rocroi, J.-P. (2005). Classification and nomenclator of gastropod families. Malacologia. 47(1-2): 1-397 ISBN 3-925919-72-4.
External links
edit- "Omalogyridae". Integrated Taxonomic Information System.
- Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979 ISBN 0-00-216906-1
- Sars, G.O. (1878). Bidrag til Kundskaben om Norges arktiske Fauna. I. Mollusca Regionis Arcticae Norvegiae. Oversigt over de i Norges arktiske Region Forekommende Bløddyr. Brøgger, Christiania. xiii + 466 pp., pls 1-34 & I-XVIII