Agatha is a small genus of minute sea snails or marine gastropod mollusks within the subfamily Syrnolinae, which is a part of the family Pyramidellidae.Rosenberg, G. (2012). Agatha A. Adams, 1860. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=599126 on 2012-08-27
They have bilateral symmetry and only have endoderm and ectoderm tissues.
The species of this genus are ectoparasites on other invertebrates.
Distribution Marine
Species † Agatha alexanderi (Marwick, 1929) Agatha amabilis Nomura, 1936 Agatha australis (Angas, 1871) Agatha brevis Yokoyama, 1922 Agatha filia (Melvill, 1893) Agatha georgiana (Hutton, 1885) Agatha laevis (Angas, 1867) Agatha obesa Peñas & Rolán, 2016 † Agatha otaioensis Laws, 1940 Agatha pacei (Dautzenberg & Fischer, 1906) † Agatha pittensis (Marwick, 1928) Agatha placida Nomura, 1936 Agatha vestalis Melvill, 1910 Agatha virgo Weisbord, 1962 Species brought into synonymy Agatha angasi (Tryon, 1886): synonym of Syrnola angasi (Tryon, 1886) Agatha infrequens Nomura, 1937: synonym of Odostomia infrequens (Nomura, 1937) Agatha lepidula Habe, 1961: synonym of Tibersyrnola lepidula (Habe, 1961) Agatha simplex (Angas, 1871): synonym of Megastomia simplex (Angas, 1871)
References
Spencer H.G., Willan R.C., Marshall B.A. & Murray T.J. (2011) Checklist of the Recent Mollusca Recorded from the New Zealand Exclusive Economic Zone