1848 Vellicolla Oskars, Too, Rees, P. M. Mikkelsen, Willassen & Malaquias, 2019 Weinkauffia Monterosato, 1884 Genera brought into synonymy Atyscaphander Annandale, 1924: synonym of Bullacta Bergh, 1901 Austrocylichna Burn, 1974: synonym of Roxaniella Monterosato, 1884 Dinia H. Adams & A. Adams, 1854: synonym of Diniatys Iredale, 1936 Haminea Gray, 1847: synonym of Haminoea Turton & Kingston in Carrington, 1830 Limulatys Iredale, 1936: synonym of Weinkauffia Weinkauff, 1873 Nipponatys Habe, 1952; synonym of Aliculastrum Pilsbry, 1896 Sinohaminea Tchang, 1933: synonym of Bullacta Bergh, 1901 Sphaeratys F. Nordsieck, 1972: synonym of Oxygyrus Benson, 1835 Ventomnestia Iredale, 1936: synonym of Mnestia H. Adams & A. Adams, 1854 Brought to another family Micratys Habe, 1952: belongs to the family [unassigned] Cephalaspidea Mimatys Habe, 1952: belongs to the family Alacuppidae. Mnestia H. Adams & A. Adams, 1854; belongs to the family Mnestiidae Genus Diniatys Diniatys dentifer A. Adams, 1850 - Distribution: Indo-Pacific, Length : 10 mm, Description : this herbivore is found on the bluegreen algae Lyngbya majuscula, Schizothrix and Hormothamnion. There is a pointed projection on the columella. The color varies between green and various shades of brown. The two black eyes are on the back of the cephalic shield. Diniatys monodonta A. Adams, 1850 Distribution: Japan Genus Haloa Haloa binotata (H. A. Pilsbry, 1895) Distribution : Indo Pacific Haloa constricta A. Adams, 1850 Distribution : Japan Haloa crocata W. H. Pease, 1860 Distribution : Hawaii Haloa flavescens (A. Adams, 1850) Distribution : Indo Pacific Haloa fusca W. H. Pease, 1863 Distribution : Indo Pacific Haloa japonica H. A. Pilsbry, 1895 Japanese Paper-bubble Distribution : Indo Pacific, Japan Length : 10 mm Description : species with beautiful colors : glassy white background with tiny white spots and dark patches with orange dots. Haloa kawamurai T. Habe, 1950 Distribution : Indo Pacific Haloa margaritoides T. Kuroda & T. Habe, 1971 Distribution : Japan Length : 7 mm Description : intertidal among seaweeds Haloa nigripunctata W. H. Pease, 1868 Distribution : Japan Haloa rotundata A. Adams, 1850 Distribution : Japan Haloa vitrea (A. Adams, 1850) Distribution : Japan Haloa yamaguchii T. Habe, 1952 Distribution : Indo Pacific Genus Hamineobulla Habe, 1950 (incertae sedis; may be belong to the family Bullidae) Hamineobulla kawamurai Habe, 1950 Distribution : Okinawa Length : 6 mm Description : brown animal with short cephalic shield; on the shell there are a few transverse rows with brighter dots Genus Liloa Pilsbry, 1921 Since